LeeAnne Murphy

I completely re-wrote my code. Now if I click on the chart option for my gui it gives these errors.


Exception in thread "AWT-EventQueue-0" java.lang.UnsupportedOperationException: Not yet implemented
at jp2wk5calc.Chart.<init>(Chart.java:14)
at jp2wk5calc.JP2wk5calc.onButtonChart(JP2wk5calc.java:318)
at jp2wk5calc.JP2wk5calc$4.actionPerformed(JP2wk5calc.java:144)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6288)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
at java.awt.Component.processEvent(Component.java:6053)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Component.dispatchEventImpl(Component.java:4651)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Component.dispatchEvent(Component.java:4481)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
at java.awt.Container.dispatchEventImpl(Container.java:2085)
at java.awt.Window.dispatchEventImpl(Window.java:2478)
at java.awt.Component.dispatchEvent(Component.java:4481)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:643)
at java.awt.EventQueue.access$000(EventQueue.java:84)
at java.awt.EventQueue$1.run(EventQueue.java:602)
at java.awt.EventQueue$1.run(EventQueue.java:600)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
at java.awt.EventQueue$2.run(EventQueue.java:616)
at java.awt.EventQueue$2.run(EventQueue.java:614)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:613)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

Here is my code
/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package jp2wk5calc; /** * * Week 5 Individual Assignment * Service Request SR-mf-003 Change Request #7 * * Write the program in Java (with a graphical user interface) and have it calculate and display the mortgage payment * amount from user input of the amount of the mortgage and the user's selection from a menu of available mortgage loans: * * - 7 year at 5.35% * - 15 year at 5.5 % * - 30 year at 5.75% * Use an array for the mortgage data for the different loans. Read the interest rates to fill the array from a sequential * file. Display the mortgage payment amount followed by the loan balance and interest paid for each payment over the term * of the loan. Add graphics in the form of a chart. Allow the user to loop back and enter a new amount and make a new * selection or quit. Please insert comments in the program to document the program */ import java.awt.BorderLayout; // Code to Import and Provide Layout of Window import java.awt.GridLayout; // Code to Import the Layout in Grid Format import java.awt.event.ActionEvent; // Code to Import Action import java.awt.event.ActionListener; // Code to Import Listener for Action import javax.swing.JButton; // Code to Import Use of Buttons import javax.swing.JFrame; // Code to Import Use of Frame import javax.swing.JLabel; // Code to Import Use of Label import javax.swing.JPanel; // Code to Import Use of Panel import javax.swing.JTextField; // Code to Import Use of Text Field import javax.swing.JTextArea; // Code to Import Use of Text Area import javax.swing.JScrollPane; // Code to Import Scroll Pane import javax.swing.JComboBox; // Code to Import JCombo Box import java.text.DecimalFormat; // Code to Import Decimal Format import javax.swing.ButtonGroup; // Code to Import Button Group import java.awt.Dimension; // Code to Import Dimension Class import java.io.*; // Code to Import ALL classes of input and output import javax.swing.JCheckBox; // Code to Import CheckBox import javax.swing.JOptionPane; // Create Mortgage Payment Class public class JP2wk5calc extends JFrame { DecimalFormat Dollar = new DecimalFormat("$###,###.00"); // Beginning of Main public static void main(String[] args) { JP2wk5calc newloan = new JP2wk5calc(); // Create Instance of Class } // Declare Variables and Values private double principalBalance; // Amount of Loan private double loanTerm; // Term of Loan private double loanRate; // Interest Rate of Loan private double monthlyRate; // Amount of Monthly Interest private double monthlyPayment; // Amount of Monthly Payment private double monthlyInterestRate; // Amount of Monthly Interest Rate private double interestMonthly; // Amount of Monthly Interest private double monthlyPrinciple; // Amount of Monthly Principle private double loanBalance; // Balance of Loan double newBalance; // New Monthly Balance of Loan private static int numberOfLinesGenerated = 1; // GUI elements to Display Current Information private JLabel principalLabel = new JLabel(" Mortgage Principal : "); private JTextField principalText = new JTextField(10); private JLabel yearsLabel = new JLabel(" Mortgage Time In Years : "); private JTextField yearsText = new JTextField(10); private JLabel rateLabel = new JLabel(" Amount Interest Rate : "); private JTextField rateText = new JTextField(10); private JCheckBox buttonEnterValue = new JCheckBox("Enter Value"); private JCheckBox buttonselectValue = new JCheckBox("Select Value"); private ButtonGroup buttongroup = new ButtonGroup(); private JTextArea result = new JTextArea(10, 20); JScrollPane Result = new JScrollPane(result); private JButton buttonCalc = new JButton("Calculate"); private JButton buttonClear = new JButton("Clear"); private JButton buttonExit = new JButton("Exit"); private JButton buttonChart = new JButton("Chart"); private JPanel panel = new JPanel(); private JPanel nextButtonPanel = new JPanel(); JPanel pane = new JPanel(new BorderLayout()); int[] trmArray = {7, 15, 30}; double[] intrstArray = {5.35, 5.50, 5.75}; String[] loanPlan = {"Select Loan", "7 years at 5.35%", "15 years at 5.5%", "30 years at 5.75%"}; private JLabel labelPlan = new JLabel(" Mortgage Plan : "); private JComboBox comboBox = new JComboBox(loanPlan); // Create Container for Information public JP2wk5calc() { buttonCalc.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { onButtonCalculate(); } }); buttonClear.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { onButtonreset(); } }); buttonExit.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { System.exit(0); } }); buttonChart.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { onButtonChart(); } }); panel.setLayout(new GridLayout(5, 2,3,3)); panel.add(principalLabel); panel.add(principalText); buttonEnterValue.setText("Get Values OR "); buttonselectValue.setText("Select Values "); buttongroup.add(buttonEnterValue); buttonEnterValue.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent evt) { buttonEnterValueActionPerformed(evt); } }); buttonEnterValue.setSelected(true); buttongroup.add(buttonselectValue); buttonselectValue.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent evt) { buttonselectValueActionPerformed(evt); } }); panel.add(buttonEnterValue); panel.add(buttonselectValue); panel.add(yearsLabel); panel.add(yearsText); panel.add(rateLabel); panel.add(rateText); panel.add(buttonCalc); panel.add(buttonClear); nextButtonPanel.add(buttonChart); nextButtonPanel.add(buttonExit); final Dimension d = new Dimension(200, 200); setLayout(new BorderLayout()); add(panel, BorderLayout.NORTH); pane.add(nextButtonPanel, BorderLayout.NORTH); pane.add(Result, BorderLayout.SOUTH); buttonExit.setEnabled(false); buttonChart.setEnabled(false); add(pane, BorderLayout.SOUTH); pack(); setDefaultCloseOperation(EXIT_ON_CLOSE ); setResizable(false); setTitle("Mortgage Calculator"); setVisible(true); } public void buttonEnterValueActionPerformed(ActionEvent evt) { if(buttonEnterValue.isSelected()){ panel.removeAll(); panel.add(principalLabel); panel.add(principalText); panel.add(buttonEnterValue); panel.add(buttonselectValue); panel.add(yearsLabel); panel.add(yearsText); panel.add(rateLabel); panel.add(rateText); panel.add(buttonCalc); panel.add(buttonClear); setVisible(true); } } public void buttonselectValueActionPerformed(ActionEvent evt) { if(buttonselectValue.isSelected()){ panel.removeAll(); panel.add(principalLabel); panel.add(principalText); panel.add(buttonEnterValue); panel.add(buttonselectValue); panel.add(labelPlan); panel.add(comboBox); panel.add(buttonCalc); panel.add(buttonClear); setVisible(true); } } // Calculate Information public void onButtonCalculate() { double loanAmt = Double.parseDouble(principalText.getText()); assignLoanAmount(loanAmt); // Assign Amount of Loan if(buttonEnterValue.isSelected()) { try{ FileReader fr = new FileReader("loandata.txt"); BufferedReader reader = new BufferedReader(fr); for(int i = 0; i < 3; i++) { trmArray[i] = Integer.parseInt(reader.readLine()); intrstArray[i] = Double.parseDouble(reader.readLine()); } reader.close(); } // report any errors catch (Exception addException){//Catch exception if any JOptionPane.showMessageDialog(null, "Error While reading Loandata file\n" + addException); } } else { String str = (String)comboBox.getSelectedItem(); if(str.equals("7 years at 5.35%")) { assignLoanRate(5.35); assignLoanTerm(7 * 12); } else if(str.equals("15 years at 5.5%")) { assignLoanRate(5.5); assignLoanTerm(15 * 12); } else if(str.equals("30 years at 5.75%")) { assignLoanRate(5.75); assignLoanTerm(30 * 12); } } calculateMonthlyPayment(); // Calculate Monthly Payment of Loan calculateMonthlyInterest(); // Calculate Monthly Interest on Loan calculateMonthlyPrinciple(); // Calculate Monthly Principle of Payment calculateLoanBalance(); // Calculate Loan Balance calculateNewBalance(); // Calculate New Balance Each Month displayAmounts(); // Display All Amounts monthlyLoanAmount(); monthlyBalanceInterest(getAssignLoanAmount(), getAssignLoanTerm(), getAssignLoanRate()); ++ numberOfLinesGenerated; if(numberOfLinesGenerated > 4) { numberOfLinesGenerated = 1; } buttonCalc.setEnabled(true); buttonClear.setEnabled(true); buttonExit.setEnabled(true); buttonChart.setEnabled(true); } // Information for Button public void onButtonreset() { principalText.setText(""); yearsText.setText(""); rateText.setText(""); result.setText(""); } public void onButtonChart() { Chart chart = new Chart((int) (loanTerm / 12)); // Create Instance of Class System.out.println("" + trmArray); } // Display Methods to Print Values for Morgage Calculator public void assignLoanAmount(double loanAmount) { principalBalance = loanAmount; } public void assignLoanRate(double interestAmount) { loanRate = interestAmount; } public void assignLoanTerm(double termAmount) { loanTerm = termAmount; } public double getAssignLoanAmount() { return principalBalance; } public double getAssignLoanRate() { return loanRate ; } public double getAssignLoanTerm() { return loanTerm; } public void calculateMonthlyPayment() { monthlyRate = (loanRate / 100) / 12; monthlyPayment = principalBalance *((monthlyRate*(Math.pow((1 + monthlyRate),loanTerm))) /(Math.pow((1 + monthlyRate),loanTerm)-1)); } public void calculateMonthlyInterest() { monthlyInterestRate = (loanRate / 12) / 100; interestMonthly = principalBalance * monthlyInterestRate; } public void calculateMonthlyPrinciple() { monthlyPrinciple = monthlyPayment - interestMonthly; } public void calculateLoanBalance() { loanBalance = principalBalance - monthlyPrinciple; } public void calculateNewBalance() { newBalance = loanBalance - monthlyPrinciple; } public void monthlyLoanAmount() { result.append("Month\tLoanBalance\tInterest Paid\n"); double newloanTerm = loanTerm; while (newloanTerm>0) { double loanMonths = loanTerm-newloanTerm; double newMonthlyBalance = principalBalance *((Math.pow((1 + monthlyInterestRate),loanTerm)) -(Math.pow((1 + monthlyInterestRate),loanMonths)))/(Math.pow((1 + monthlyInterestRate),loanTerm)-1); double monthlyamountInterest = newMonthlyBalance * monthlyInterestRate; result.append("" + Math.round(newloanTerm) + "\t" + Dollar.format(newMonthlyBalance) + "\t" + Dollar.format(monthlyamountInterest) + "\n"); newloanTerm -= 1; } } public void monthlyBalanceInterest(double loan, double term, double intrstArray) { DecimalFormat df = new DecimalFormat("$###,###.00"); // Format Decimal Point double mnrate = (intrstArray/(12*100)); // Get Monthly Interest Rate // Calculate Discount Factor double discountFactor = (Math.pow((1 + mnrate), term) -1) / (mnrate * Math.pow((1 + mnrate), term)); double payment1 = loan / discountFactor; // Calculate Monthly Payment // Display Program Results result.append("\nLoan Amount = " + df.format(loan)); result.append("\nInterest Rate = " + intrstArray + "%"); result.append("\nLength of Loan = " + Math.round(term/12) +" years"); result.append("\nMonthly Payment = " + df.format(payment1) + "\n"); } public void displayAmounts() { System.out.println("Loan Amount = " + Dollar.format(principalBalance)); // Show Original Loan Amount System.out.println("Interest Rate = " + loanRate + "%"); // Show Interest Rate System.out.println("Length of Loan = " + Math.round(loanTerm) + " months"); // Show Length of Loan System.out.println("Monthly Payment = " + Dollar.format(monthlyPayment)); // Show Monthly Payment } }

Won't need to take another java programming class. This one ends on Monday and then I have a week off and start Introduction to Unix. I just can't get the hang of programming in java, I have struggled for the last 4 weeks in class.

ok I figured out what I did wrong..wasn't paying attention to spelling. I know this is a lot of code but for the class this is the only way I kinda understand...so I am still not getting this stuff. I am dumb when it comes to this type of programming so I try to remember what I have done from week to week and use the book as guideline but still not fully understanding.

Here is the portion from the original code that is still giving me problems. I just don't understand what is being explained to me...as I said I am dumb when it comes to java programming

{ double xincrement = (width/(dblLoanDuration*12));// bad operand types double yincrement = height/dblLoanAmount; g.drawString("Payments", 65, 10); while (counter <= 10) { x = x + xincrement; g.drawString(Integer.toString((int)((((dblLoanDuration*12)/10)*counter))),// bad operand types (int)((width/10)*counter)+55, 20); counter++; drawn = true; double amount=dblLoanAmount; double payment=amount/12; g.drawString("Amount", 0, 20); while (y < height) { y = y + (height/12); g.drawString(paymentFormat.format(amount), 0, (int)y); amount = amount-payment; } // begin the events private class ClickListener implements ActionListener {// illegal start of expression public void actionPerformed(ActionEvent p) { if (p.getSource() == calc) // if the user clicks the calculate button { try { // convert text entry into numbers

bold is what is giving the errors

/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package wk5calcjp2; // Import packages that are used within the program import javax.swing.*; import java.awt.event.*; import java.lang.Math.*; import java.text.NumberFormat; import javax.swing.ButtonGroup; import java.awt.Graphics; import java.text.DecimalFormat; /** * * @author LeeAnne Murphy * Java Programming 2 / PRG 421 * Due September 5, 2011 */ public class wk5calcjp2 extends JFrame { private static wk5calcjp2 wk5calcjp2; public static void main(String[] args) { wk5calcjp2 = new wk5calcjp2(); // Declare buttons, text fields, and labels private JButton calculate; private JButton exit; private JButton calc; private JTextField enterAmount; private JTextField enterInterest; private JTextField enterMonth; private JLabel loan; private JLabel interest; private JLabel mRate; private JLabel blankspace; private JLabel data; private JLabel data1; private JLabel data2; private JRadioButton term7; private JRadioButton term15; private JRadioButton term30; public wk5calcjp2() { // set the size of the frame this.setSize(350, 350); // what the "exit" button will do when clicked. this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // Title of frame this.setTitle("Mortgage Calculator"); // Create the layout JPanel mainpanel = new JPanel(); // panel1 JPanel panel1 = new JPanel(); data = new JLabel("Please fill out the amount of the loan."); panel1.add(data); mainpanel.add(panel1); // panel2 JPanel panel2 = new JPanel(); loan = new JLabel("Amount of Loan"); enterAmount = new JTextField(8); panel2.add(loan); panel2.add(enterAmount); mainpanel.add(panel2); // panel3 JPanel panel3 = new JPanel(); data1 = new JLabel("Choose between rate & term"); panel3.add(data1); mainpanel.add(panel3); // panel4 JPanel panel4 = new JPanel(); ButtonGroup choice = new ButtonGroup(); term7 = new JRadioButton("7 Years @ 5.35%"); term15 = new JRadioButton("15 Years @ 5.5%"); term30 = new JRadioButton("30 Years @ 5.75%"); panel4.add(term7); choice.add(term7); panel4.add(term15); choice.add(term15); panel4.add(term30); choice.add(term30); mainpanel.add(panel4); // panel5 JPanel panel5 = new JPanel(); calc = new JButton("Calculate Choice"); panel5.add(calc); mainpanel.add(panel5); // panel6 JPanel panel6 = new JPanel(); data2 = new JLabel("Or fill in yourself."); panel6.add(data2); mainpanel.add(panel6); //panel7 JPanel panel7 = new JPanel(); interest = new JLabel("Interest Rate"); enterInterest = new JTextField(8); panel7.add(interest); panel7.add(enterInterest); mainpanel.add(panel7); // panel8 JPanel panel8 = new JPanel(); mRate = new JLabel("Term of Loan"); enterMonth = new JTextField(8); panel8.add(mRate); panel8.add(enterMonth); mainpanel.add(panel8); // panel9 JPanel panel9 = new JPanel(); blankspace = new JLabel(" "); panel9.add(blankspace); mainpanel.add(panel9); // panel10 JPanel panel10 = new JPanel(); calculate = new JButton("Calculate"); exit = new JButton("Exit"); panel10.add(calculate); panel10.add(exit); mainpanel.add(panel10); // adds all 10 panels together this.add(mainpanel); // set see the frame this.setVisible(true); // Creating the event listener ClickListener click = new ClickListener(); // Create Action Listeners calculate.addActionListener(click); exit.addActionListener(click); calc.addActionListener(click); } public void paint(Graphics g) { DecimalFormat paymentFormat = new DecimalFormat ("$0.00"); int[] dblLoanDuration = new int[3]; dblLoanDuration[0] = 7; dblLoanDuration[1] = 15; dblLoanDuration[2] = 30; int dblLoanAmount = 200000; boolean drawn; double width = 900.00; int height= 400; double x=1.0; double y=0.0; int counter = 0; double xincrement = (width/(dblLoanDuration*12)); double yincrement = height/dblLoanAmount; g.drawString("Payments", 65, 10); while (counter <= 10) { x = x + xincrement; g.drawString(Integer.toString((int)((((dblLoanDuration*12)/10)*counter))), (int)((width/10)*counter)+55, 20); counter++; drawn = true; } double amount=dblLoanAmount; double payment=amount/12; g.drawString("Amount", 0, 20); while (y < height) { y = y + (height/12); g.drawString(paymentFormat.format(amount), 0, (int)y); amount = amount-payment; } } // begin the events private class ClickListener implements ActionListener { public void actionPerformed(ActionEvent p) { if (p.getSource() == calc) // if the user clicks the calculate button { try { // convert text entry into numbers double receiveAmount = Double.parseDouble(enterAmount.getText()); // create the arrays for the three different loans int Terms[] = {7, 15, 30}; // loan in years double InterestArray[] = {5.35, 5.5, 5.75}; // interest as a percent // Array 1 if (term7.isSelected()) { double receiveInterest = InterestArray[0]; double receiveTerms = Terms[0]; double interest1 = (receiveInterest / (12 * 100)); double term1 = (receiveTerms * 12); double term2 = (1 + interest1); double pay1 = Math.pow(term2, -term1); double payment = ((receiveAmount * interest1) / (1 - pay1)); double interestpay; double remainBal = receiveAmount; // create the number format NumberFormat fixdecimal = NumberFormat.getNumberInstance(); fixdecimal.setMinimumFractionDigits(2); fixdecimal.setMaximumFractionDigits(2); // Create counter for (int x = 1; x <= term1; x++) { interestpay = (remainBal * interest1); double interestout = 0; remainBal = (remainBal - (payment - interestpay)); interestout = (interestout + interestpay); // The output based on amount input and loan selection. JOptionPane.showMessageDialog(null, "Original Balance = $" + receiveAmount + "\nPayment #" + x + "\nMonthly Payment $" + fixdecimal.format(payment) + "\nRemaining Balance $" + fixdecimal.format(remainBal) + "\nInterest Paid $" + fixdecimal.format(interestpay), "Payment History", JOptionPane.PLAIN_MESSAGE); } // Exit or enter option. int finalanswer = JOptionPane.showConfirmDialog(null, "Would you like to input a new amount?" + "\n\n(chose Yes to continue or No to Exit)", "Continue", JOptionPane.YES_NO_OPTION); if (finalanswer == JOptionPane.NO_OPTION) { System.exit(0); } else if (finalanswer == JOptionPane.YES_OPTION) { // if the user chooses 'yes' the amount field will blank out enterAmount.setText(null); } // Array 2 } else if (term15.isSelected()) { double receiveInterest = InterestArray[1]; double receiveTerms = Terms[1]; double interest1 = (receiveInterest / (12 * 100)); double term1 = (receiveTerms * 12); double term2 = (1 + interest1); double pay1 = Math.pow(term2, -term1); double payment = ((receiveAmount * interest1) / (1 - pay1)); double interestpay; double remainBal = receiveAmount; // create the number format NumberFormat fixdecimal = NumberFormat.getNumberInstance(); fixdecimal.setMinimumFractionDigits(2); fixdecimal.setMaximumFractionDigits(2); // Create counter for (int x = 1; x <= term1; x++) { interestpay = (remainBal * interest1); double interestout = 0; remainBal = (remainBal - (payment - interestpay)); interestout = (interestout + interestpay); // The output based on amount input and loan selection. JOptionPane.showMessageDialog(null, "Original Balance = $" + receiveAmount + "\nPayment #" + x + "\nMonthly Payment $" + fixdecimal.format(payment) + "\nRemaining Balance $" + fixdecimal.format(remainBal) + "\nInterest Paid $" + fixdecimal.format(interestpay), "Payment History", JOptionPane.PLAIN_MESSAGE); } // Exit or enter option. int finalanswer = JOptionPane.showConfirmDialog(null, "Would you like to enter a new amount?" + "\n\n(chose Yes to continue or No to Exit)", "Continue", JOptionPane.YES_NO_OPTION); if (finalanswer == JOptionPane.NO_OPTION) { System.exit(0); // If the user chooses 'yes' the amount field will blank out } else if (finalanswer == JOptionPane.YES_OPTION) { enterAmount.setText(null); } // Array 3 } else if (term30.isSelected()) { double receiveInterest = InterestArray[2]; double receiveTerms = Terms[2]; double interest1 = (receiveInterest / (12 * 100)); double term1 = (receiveTerms * 12); double term2 = (1 + interest1); double pay1 = Math.pow(term2, -term1); double payment = ((receiveAmount * interest1) / (1 - pay1)); double interestpay; double remainBal = receiveAmount; // create the number format NumberFormat fixdecimal = NumberFormat.getNumberInstance(); fixdecimal.setMinimumFractionDigits(2); fixdecimal.setMaximumFractionDigits(2); // Create counter for (int x = 1; x <= term1; x++) { interestpay = (remainBal * interest1); double interestout = 0; remainBal = (remainBal - (payment - interestpay)); interestout = (interestout + interestpay); // The output based on amount input and loan selection. JOptionPane.showMessageDialog(null, "Original Balance = $" + receiveAmount + "\nPayment #" + x + "\nMonthly Payment $" + fixdecimal.format(payment) + "\nRemaining Balance $" + fixdecimal.format(remainBal) + "\nInterest Paid $" + fixdecimal.format(interestout), "Payment History", JOptionPane.PLAIN_MESSAGE); } // Exit or enter option. int finalanswer = JOptionPane.showConfirmDialog(null, "Would you like to enter a new amount?" + "\n\n(chose Yes to continue or No to Exit)", "Continue", JOptionPane.YES_NO_OPTION); if (finalanswer == JOptionPane.NO_OPTION) { System.exit(0); // If the user chooses 'yes' the amount field will blank out } else if (finalanswer == JOptionPane.YES_OPTION) { enterAmount.setText(null); } } } catch (NumberFormatException e) { } } // Create a new event if (p.getSource() == calculate) { try { // turn text entries into numbers double receiveAmount = Double.parseDouble(enterAmount.getText()); double receivePerc = Double.parseDouble(enterInterest.getText()); double receiveTerm = Double.parseDouble(enterMonth.getText()); double receiveInterest = receivePerc; double receiveTerms = receiveTerm; double interest1 = (receiveInterest / (12 * 100)); double term1 = (receiveTerms * 12); double term2 = (1 + interest1); double pay1 = Math.pow(term2, -term1); double payment = ((receiveAmount * interest1) / (1 - pay1)); double interestpay; double remainBal = receiveAmount; // create the number format NumberFormat fixdecimal = NumberFormat.getNumberInstance(); fixdecimal.setMinimumFractionDigits(2); fixdecimal.setMaximumFractionDigits(2); // Create counter for (int x = 1; x <= term1; x++) { interestpay = (remainBal * interest1); double interestout = 0; remainBal = (remainBal - (payment - interestpay)); interestout = (interestout + interestpay); // The output based on amount input and loan selection. JOptionPane.showMessageDialog(null, "Original Balance = $" + receiveAmount + "\nPayment #" + x + "\nMonthly Payment $" + fixdecimal.format(payment) + "\nRemaining Balance $" + fixdecimal.format(remainBal) + "\nInterest Paid $" + fixdecimal.format(interestout), "Payment History", JOptionPane.PLAIN_MESSAGE); } // Exit or enter option. int finalanswer = JOptionPane.showConfirmDialog(null, "Would you like to enter a new amount?" + "\n\n(chose Yes to continue or No to Exit)", "Continue", JOptionPane.YES_NO_OPTION); if (finalanswer == JOptionPane.NO_OPTION) { System.exit(0); // if the user chooses 'yes' the amount field will blank out } else if (finalanswer == JOptionPane.YES_OPTION) { } // resets the entry fields enterAmount.setText(null); enterInterest.setText(null); enterMonth.setText(null); } catch (NumberFormatException e) { } } // Event Exit button if (p.getSource() == exit) { System.exit(0); } } } }


the errors are on line 22, 34, 181, and 187 - I don't understand the errors - need explanation in simple terms...Sorry keep forgetting things

line 22 error - class wk5calcjp2 is public, should be declared in a file named wk5calcjp2.java
line 34 error - illegal start of expression
line 181 error - bad operand types for binary operation, first type; int [] second type; int
line 187 error - inconvertible types required: int, found :<any> and also bad operand types for binary operation, first type; [] second type; int

Ah got it...I removed the 2nd bracket.. and it cleared the error. Thank you.

/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package wk4calcjp2; /** * * @author LeeAnne Murphy * Java Programming 2/ PRG 421 * Due Date August 29, 2011 * Week 4 - SR-mf-003 Change Request #6 * Write the program in Java (with a graphical user interface) so that it will allow * the user to select which way they want to calculate a mortgage: by input of the * amount of the mortgage, the term of the mortgage, and the interest rate * of the mortgage payment or by input of the amount of a mortgage and then select * from a menu of mortgage loans: * - 7 year at 5.35% * - 15 year at 5.5 % * - 30 year at 5.75% * In either case, display the mortgage payment amount and then, list the loan balance * and interest paid for each payment over the term of the loan. Allow the user to loop * back and enter a new amount and make a new selection, or quit. * Insert comments in the program to document the program. */ import java.awt.BorderLayout; // Code to Import and Provide Layout of Window import java.awt.GridLayout; // Code to Import the Layout in Grid Format import java.awt.event.ActionEvent; // Code to Import Action import java.awt.event.ActionListener; // Code to Import Listener for Action import javax.swing.JButton; // Code to Import Use of Buttons import javax.swing.JFrame; // Code to Import Use of Frame import javax.swing.JLabel; // Code to Import Use of Label import javax.swing.JPanel; // Code to Import Use of Panel import javax.swing.JTextField; // Code to Import Use of Text Field import javax.swing.JTextArea; // Code to Import Use of Text Area import javax.swing.JScrollPane; // Code to Import Scroll Pane import javax.swing.JComboBox; // Code to Import JCombo Box import java.text.DecimalFormat; // Code to Import Decimal Format import javax.swing.BorderFactory; // Code to Import Border import javax.swing.ButtonGroup; // Code to Import Button Group import javax.swing.JCheckBox; // Create Mortgage Payment Class public class Wk4calcjp2 extends JFrame { DecimalFormat Dollar = new DecimalFormat("$###,###.00"); // Beginning of Main public static void main(String[] args) { [b]Wk4calcjp2 newloan = new Wk4calcjp2()); [/b] // Create Instance of Class } // End main // Declare Variables and Values private double principalBalance; // Amount of Loan private double loanTerm; // Term of Loan private double loanRate; // Interest Rate of Loan private double monthlyPayment; // Amount of Monthly Payment private double monthlyInterestRate; // Amount of Monthly Interest Rate private double interestMonthly; // Amount of Monthly Interest private double monthlyPrinciple; // Amount of Monthly Principle private double loanBalance; // Balance of Loan double newBalance; // New Monthly Balance of Loan // GUI elements to Display Current Information private JLabel labelPrincipal = new JLabel(" Mortgage Principal : "); private JTextField txtPrincipal = new JTextField(10); private JLabel labelYears = new JLabel(" Mortgage Time In Years : "); private JTextField txtYears = new JTextField(10); private JLabel labelRate = new JLabel(" Amount Interest Rate : "); private JTextField txtRate = new JTextField(10); private JCheckBox buttonEnterValue = new JCheckBox("Enter Value"); private JCheckBox buttonselectValue = new JCheckBox("Select Value"); private ButtonGroup group = new ButtonGroup(); private JTextArea result = new JTextArea(10, 20); private JScrollPane scrollResult = new JScrollPane(result); private JButton buttonCalc = new JButton("Calculate"); private JButton buttonClear = new JButton("Clear"); private JButton buttonExit = new JButton("Exit"); private JPanel panel = new JPanel(); private String loanPlan[] = {"Select Loan", "7 years at 5.35%", "15 years at 5.5%", "30 years at 5.75%"}; private JLabel labelPlan = new JLabel(" Mortgage Plan : "); private JComboBox comboBox = new JComboBox(loanPlan); /** * @param args the command line arguments */ // Create Container for Information public Wk4calcjp2() { buttonCalc.addActionListener(new ActionListener() // Adds an action listener to the calc button. The action listener will be called if button is selected. { public void actionPerformed(ActionEvent e) { onButtonCalculate(); // Calculates information when clicked } }); buttonClear.addActionListener(new ActionListener() // Adds an action listener to the clear button. The action listener will be called if button is selected. { public void actionPerformed(ActionEvent e) { onButtonClear(); // Clears information when clicked } }); //Declares button to clear (reset) the data buttonExit.addActionListener(new ActionListener() // Adds an action listener to the exit button. The action listener will be called if button is selected. { public void actionPerformed(ActionEvent e) { onButtonExit(); //Exits the program when clicked } }); panel.setLayout(new GridLayout(6, 4, 6, 6)); panel.add(labelPrincipal); panel.add(txtPrincipal); buttonEnterValue.setText("Enter Values OR "); //Checkbox selection fpr user entry buttonselectValue.setText("Select Values "); // Checkbox selection for user to select values group.add(buttonEnterValue); //Adds a button to a radio button group. buttonEnterValue.addActionListener(new ActionListener() { // Adds an action listener to the radio button. The action listener will be called if button is selected. public void actionPerformed(ActionEvent e) { buttonEnterValuesActionPerformed(e); } }); buttonEnterValue.setSelected(true); // Sets selected status of a radio button to true group.add(buttonselectValue); // Adds a button to a radio button group. buttonselectValue.addActionListener(new ActionListener() { // Adds an action listener to the radio button. The action listener will be called if button is selected. public void actionPerformed(ActionEvent e) { buttonselectValuesActionPerformed(e); } }); panel.add(buttonEnterValue); panel.add(buttonselectValue); panel.add(labelYears); panel.add(txtYears); panel.add(labelRate); panel.add(txtRate); panel.add(buttonCalc); panel.add(buttonClear); panel.add(buttonExit); setLayout(new BorderLayout()); panel.setBorder(BorderFactory.createTitledBorder( BorderFactory.createEtchedBorder(), "Loan Plan")); // Creates etched border add(panel, BorderLayout.CENTER); add(scrollResult, BorderLayout.SOUTH); pack(); setDefaultCloseOperation(EXIT_ON_CLOSE); setResizable(false); setTitle("Mortgage Calculator"); setVisible(true); } public void buttonEnterValuesActionPerformed(ActionEvent e) { if (buttonEnterValue.isSelected()) { // Returns true if button is selected. panel.removeAll(); panel.add(labelPrincipal); panel.add(txtPrincipal); panel.add(buttonEnterValue); panel.add(buttonselectValue); panel.add(labelYears); panel.add(txtYears); panel.add(labelRate); panel.add(txtRate); panel.add(buttonCalc); panel.add(buttonClear); panel.add(buttonExit); setVisible(true); } } public void buttonselectValuesActionPerformed(ActionEvent e) { if (buttonselectValue.isSelected()) { // Returns true if button is selected. panel.removeAll(); panel.add(labelPrincipal); panel.add(txtPrincipal); panel.add(buttonEnterValue); panel.add(buttonselectValue); panel.add(labelPlan); panel.add(comboBox); panel.add(buttonCalc); panel.add(buttonClear); panel.add(buttonExit); setVisible(true); } } // Calculate Information public void onButtonCalculate() { double loanAmt = Double.parseDouble(txtPrincipal.getText()); assignLoanAmount(loanAmt); // Assign Amount of Loan if (buttonEnterValue.isSelected()) { double rate = Double.parseDouble(txtRate.getText()); assignLoanRate(rate); double years = Double.parseDouble(txtYears.getText()); assignLoanTerm(years * 12); } else { String str = (String) comboBox.getSelectedItem(); if (str.equals("7 years at 5.35%")) { assignLoanRate(5.35); assignLoanTerm(7 * 12); } else if (str.equals("15 years at 5.5%")) { assignLoanRate(5.5); assignLoanTerm(15 * 12); } else if (str.equals("30 years at 5.75%")) { assignLoanRate(5.75); assignLoanTerm(30 * 12); } } calcMonthlyPayment(); // Calculate Monthly Payment of Loan calcMonthlyInterest(); // Calculate Monthly Interest on Loan calcMonthlyPrinciple(); // Calculate Monthly Principle of Payment calcLoanBalance(); // Calculate Loan Balance calcNewBalance(); // Calculate New Balance Each Month displayAmounts(); // Display All Amounts monthlyLoanAmount(); monthlyInterestBalance(getAssignLoanAmount(), getAssignLoanTerm(), getAssignLoanRate()); } // Information for Button public void onButtonClear() { txtPrincipal.setText(""); txtYears.setText(""); txtRate.setText(""); result.setText(""); } // Information for Exit Button public void onButtonExit() { System.exit(0); } // Display Methods to Print Values for Morgage Calculator public void assignLoanAmount(double loanAmount) { principalBalance = loanAmount; } public void assignLoanRate(double interestAmount) { loanRate = interestAmount; } public void assignLoanTerm(double termAmount) { loanTerm = termAmount; } public double getAssignLoanAmount() { return principalBalance; } public double getAssignLoanRate() { return loanRate; } public double getAssignLoanTerm() { return loanTerm; } public void calcMonthlyPayment() { interestMonthly = (loanRate / 100) / 12; monthlyPayment = principalBalance * ((interestMonthly * (Math.pow((1 + interestMonthly), loanTerm))) / (Math.pow((1 + interestMonthly), loanTerm) - 1)); } public void calcMonthlyInterest() { monthlyInterestRate = (loanRate / 12) / 100; interestMonthly = principalBalance * monthlyInterestRate; } public void calcMonthlyPrinciple() { monthlyPrinciple = monthlyPayment - interestMonthly; } public void calcLoanBalance() { loanBalance = principalBalance - monthlyPrinciple; } public void calcNewBalance() { newBalance = loanBalance - monthlyPrinciple; } public void monthlyLoanAmount() { result.append("Month\tLoanBalance\tInterest Paid\n"); double newloanTerm = loanTerm; while (newloanTerm > 0) { double loanMonths = loanTerm - newloanTerm; double newMonthlyBalance = principalBalance * ((Math.pow((1 + monthlyInterestRate), loanTerm)) - (Math.pow((1 + monthlyInterestRate), loanMonths))) / (Math.pow((1 + monthlyInterestRate), loanTerm) - 1); double monthlyamountInterest = newMonthlyBalance * monthlyInterestRate; result.append("" + Math.round(newloanTerm) + "\t" + Dollar.format(newMonthlyBalance) + "\t" + Dollar.format(monthlyamountInterest) + "\n"); newloanTerm -= 1; } } public void monthlyInterestBalance(double loan, double term, double interestRate) { DecimalFormat df = new DecimalFormat("$###,###.00"); // Format Decimal Point double monthlyRate = (interestRate / (12 * 100)); // Get Monthly Interest Rate // Calculate Discount Factor double discountFactor = (Math.pow((1 + monthlyRate), term) - 1) / (monthlyRate * Math.pow((1 + monthlyRate), term)); double payment1 = loan / discountFactor; // Calculate Monthly Payment // Display Program Results result.append("\nLoan Amount = " + df.format(loan)); result.append("\nInterest Rate = " + interestRate + "%"); result.append("\nLength of Loan = " + Math.round(term / 12) + " years"); result.append("\nMonthly Payment = " + df.format(payment1) + "\n"); } public void displayAmounts() { System.out.println("Loan Amount = " + Dollar.format(principalBalance)); // Show Original Loan Amount System.out.println("Interest Rate = " + loanRate + "%"); // Show Interest Rate System.out.println("Length of Loan = " + Math.round(loanTerm) + " months"); // Show Length of Loan System.out.println("Monthly Payment = " + Dollar.format(monthlyPayment)); // Show Monthly Payment } } // End Wk4calcjp2 program

Wk4calcjp2 newloan = new Wk4calcjp2()); (error says ';' expected) what does that mean?

[Edit: fixed code tags]

I'm really sorry...I don't understand what you are asking.

Why have you got that static nested class in the first place? ( I don't understand static statements)

Ok changed that and now the lines below it are giving me errors.

public void setSize() { //Set frame title frame.setSize(400,400); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setResizable(false); frame.setTitle("McBride Mortgage Calculator"); frame.setVisible(true); }

Here is the error.

non-static variable frame cannot be referenced from a static context

Errors in code are as follows:
C:\Users\LeeAnne\Documents\NetBeansProjects\week3mortcalcjp2\src\week3mortcalcjp2\Week3mortcalcjp2.java:274: invalid method declaration; return type required
C:\Users\LeeAnne\Documents\NetBeansProjects\week3mortcalcjp2\src\week3mortcalcjp2\Week3mortcalcjp2.java:274: invalid method declaration; return type required
public setSize() {
1 error
C:\Users\LeeAnne\Documents\NetBeansProjects\week3mortcalcjp2\nbproject\build-impl.xml:603: The following error occurred while executing this line:
C:\Users\LeeAnne\Documents\NetBeansProjects\week3mortcalcjp2\nbproject\build-impl.xml:245: Compile failed; see the compiler error output for details.



package week3mortcalcjp2; import java.awt.Component; import javax.swing.JButton; // Code to Import Use of Buttons import javax.swing.JLabel; // Code to Import Use of Label import javax.swing.JPanel; // Code to Import Use of Panel import java.awt.BorderLayout; // Code to Import and Provide Window Layout import java.awt.FlowLayout; import java.awt.GridLayout; // Code to Import Grid Format Layout import java.awt.event.ActionEvent; // Code to Import Action Event import java.awt.event.ActionListener; // Code to Import Action Listener import javax.swing.JTextField; // Code to Import Use of Text Field import javax.swing.JTextArea; // Code to Import Use of Text Area import javax.swing.JScrollPane; // Code to Import Scroll Pane import javax.swing.JComboBox; // Code to Import JCombo Box import java.text.DecimalFormat; // Code to Import Decimal Format import javax.swing.JFrame; /** * * Java Programming 2 week 3 * August 22, 2011 * Write the program in Java (with a graphical user interface) and have it calculate and * display the mortgage payment amount from user input of the amount of the mortgage and * the user's selection from a menu of available mortgage loans: * - 7 years at 5.35% * - 15 years at 5.5% * - 30 years at 5.75% * * Use an array for the mortgage data for the different loans. Display the mortgage * payment amount followed by the loan balance and interest paid for each payment over * the term of the loan. Allow the user to loop back and enter a new mount and make a * new selection or quit. Please insert comments in the program to document the program. * */ public class Week3mortcalcjp2 extends JFrame implements ActionListener { private static JLabel lMessages; // Create Mortgage Payment Class private static Component pLabels; private static Component pTextFields; DecimalFormat Dollar = new DecimalFormat("$###,###.00"); // Beginning of Main Week3mortcalcjp2 newLoan = new Week3mortcalcjp2(); // Create Instance of Class and do all stuff to be done // Declare Variables and Values double principalBalance; // Amount of Loan double loanTerm; // Term of Loan double loanRate; // Interest Rate of Loan double interestMonthly; // Amount of Monthly Interest double monthlyPayment; // Amount of Monthly Payment double monthlyInterestRate; // Amount of Monthly Interest Rate double monthlyPrinciple; // Amount of Monthly Principle double loanBalance; // Balance of Loan // GUI elements to declare input Panel private JLabel labelPrincipal = new JLabel("Mortgage Principal:"); private JTextField txtPrincipal = new JTextField(10); private JLabel labelPlan = new JLabel("Mortgage Plan:"); String loanPlan[] = {"Select Loan", "7 years at 5.35%", "15 years at 5.5%", "30 years at 5.75%"}; private JComboBox comboBox = new JComboBox(loanPlan); private JTextArea result = new JTextArea(10, 20); JScrollPane scrollResult = new JScrollPane(result); private boolean exp; public static void main(String[] args) { //Declares button to trigger the calculation final JButton buttonCalc = new JButton("Calculate"); buttonCalc.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { onButtonCalculate(); } }); //Declares button to clear (reset) the data final JButton buttonClear = new JButton("Clear"); buttonClear.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { onButtonreset(); } }); //Separates panel used for messages to user JPanel pMessages = new JPanel(); pMessages.setLayout(new FlowLayout()); pMessages.add(lMessages = new JLabel("Calculate Mortgage")); pMessages.setLayout(new GridLayout(6, 4, 6, 6)); pMessages.add(new JLabel("Enter Loan Amount")); pMessages.add(new JLabel("Enter Interest Rate (percentage)")); pMessages.add(new JLabel("Enter Loan Length (years)")); pMessages.add(new JLabel("Your Monthly Payment is:")); //Sets the layout JPanel pData = new JPanel(); pData.setLayout(new BorderLayout()); pData.add(pMessages, BorderLayout.CENTER); pData.add(pTextFields, BorderLayout.SOUTH); } // Calculate Information public void onButtonCalculate() { // Assign Amount of Loan double loanAmt = Double.parseDouble(txtPrincipal.getText()); assignLoanAmount(loanAmt); //Select and assign loan rate and loan term String str = (String) comboBox.getSelectedItem(); if (str.equals("7 years at 5.35%")) { assignLoanRate(5.35); assignLoanTerm(7 * 12); } else if (str.equals("15 years at 5.5%")) { assignLoanRate(5.5); assignLoanTerm(15 * 12); } else if (str.equals("30 years at 5.75%")) { assignLoanRate(5.75); assignLoanTerm(30 * 12); } calcMonthlyPayment(); // Calculate Monthly Payment of Loan calcMonthlyInterest(); // Calculate Monthly Interest on Loan calcMonthlyPrinciple(); // Calculate Monthly Principle of Payment calcLoanBalance(); // Calculate Loan Balance calculateNewBalance(); // Calculate New Balance Each Month displayAmounts(); // Display All Amounts monthlyLoanAmount(); monthlyBalanceInterest(getAssignLoanAmount(), getAssignLoanTerm(), getAssignLoanRate()); } // Information for Button public void onButtonreset() { txtPrincipal.setText(""); comboBox.setSelectedIndex(0); result.setText(""); } // Display Methods to Print Values for Morgage Calculator public void assignLoanAmount(double loanAmount) { principalBalance = loanAmount; } public void assignLoanRate(double interestAmount) { loanRate = interestAmount; } public void assignLoanTerm(double termAmount) { loanTerm = termAmount; } public double getAssignLoanAmount() { return principalBalance; } public double getAssignLoanRate() { return loanRate; } public double getAssignLoanTerm() { return loanTerm; } public void calcMonthlyPayment() { interestMonthly = (loanRate / 100) / 12; monthlyPayment = principalBalance * ((interestMonthly * (Math.pow((1 + interestMonthly), loanTerm))) / (Math.pow((1 + interestMonthly), loanTerm) - 1)); } public void calcMonthlyInterest() { monthlyInterestRate = (int) ((loanRate / 12) / 100); interestMonthly = principalBalance * monthlyInterestRate; } public void calcMonthlyPrinciple() { monthlyPrinciple = monthlyPayment - interestMonthly; } public void calcLoanBalance() { loanBalance = principalBalance - monthlyPrinciple; } public void calculateNewBalance() { loanBalance -= monthlyPrinciple; } public void monthlyLoanAmount() { result.append("Month\tLoanBalance\tInterest Paid\n"); double newLoanTerm = loanTerm; while (newLoanTerm > 0) { double loanMonths = loanTerm - newLoanTerm; double newMonthlyBalance = principalBalance * ((Math.pow((1 + monthlyInterestRate), loanTerm)) - (Math.pow((1 + monthlyInterestRate), loanMonths))) / (Math.pow((1 + monthlyInterestRate), loanTerm) - 1); double monthlyamountInterest = newMonthlyBalance * monthlyInterestRate; result.append("" + Math.round(newLoanTerm) + "\t" + Dollar.format(newMonthlyBalance) + "\t" + Dollar.format(monthlyamountInterest) + "\n"); newLoanTerm -= 1; } } public void monthlyBalanceInterest(double loan, double term, double interestRate) { // Format Decimal Point DecimalFormat df = new DecimalFormat("$###,###.00"); // Get Monthly Interest Rate double monthlyRate = (interestRate / (12 * 100)); // Calculate Discount Factor double discountFactor = (Math.pow((1 + monthlyRate), term) - 1) / (monthlyRate * Math.pow((1 + monthlyRate), term)); // Calculate Monthly Payment double payment1 = loan / discountFactor; // Display Program Results result.append("\nLoan Amount = " + df.format(loan)); result.append("\nInterest Rate = " + interestRate + "%"); result.append("\nLength of Loan = " + Math.round(term / 12) + " years"); result.append("\nMonthly Payment = " + df.format(payment1) + "\n"); } public void displayAmounts() { System.out.println("Loan Amount = " + Dollar.format(principalBalance)); // Show Original Loan Amount String loan = null; System.out.println("Interest Rate = " + loan + "%"); // Show Interest Rate System.out.println("Length of Loan = " + Math.round(loanTerm) + " months"); // Show Length of Loan System.out.println("Monthly Payment = " + Dollar.format(monthlyPayment)); // Show Monthly Payment } private void setLayout(BorderLayout borderLayout) { throw new UnsupportedOperationException("Not yet implemented"); } private void add(JPanel panel, String CENTER) { throw new UnsupportedOperationException("Not yet implemented"); } private void add(JScrollPane scrollResult, String SOUTH) { throw new UnsupportedOperationException("Not yet implemented"); } Week3mortcalcjp2 frame = new Week3mortcalcjp2(); @Override public void actionPerformed(ActionEvent e) { throw new UnsupportedOperationException("Not supported yet."); } static class setSize { class frame { public setSize() { //Set frame title frame.setSize(400,400); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setResizable(false); frame.setTitle("McBride Mortgage Calculator"); frame.setVisible(true); } @Override public void actionPerformed(ActionEvent e) { throw new UnsupportedOperationException("Not supported yet."); } } } }

I understand that but the instructor for the class wants us to use the IDE. So that is where I am at. I will keep trying to figure it out.

Thank you for the help.

It was placed there by Netbeans IDE 7.0, if I don't have them up there then the lower part of the code errors on me.

Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - illegal start of expression
at mortcalcjp2week3.Mortcalcjp2week3.main(Mortcalcjp2week3.java:58)
Java Result: 1
BUILD SUCCESSFUL (total time: 3 seconds)

I know it is in line 58 which is this part but I am so lost.


/**
* @param args the command line arguments
*/
public static void main(String[] args) {

// Requestor - Ninfa Pendleton - Rapid City, SD
// PRG/421
// August 22, 2011

// Service Request SR-mf-003 Mortgage Payment Calculator. Change Request #4:Write the program in Java (with a graphical
// user interface) and have it calculate and display the mortgage payment amount from user input of the amount of the mortgage
// and the user's selection from a menu of available mortgage loans:

// - 7 years at 5.35%
// - 15 years at 5.5%
// - 30 years at 5.75%

// Use an array for the mortgage data for the different loans. Display the mortgage payment amount followed by
// the loan balance and interest paid for each payment over the term of the loan. Allow the user to loop
// back and enter a new amount and make a new selection or quit. Please insert comments in the program to
// document the program.

private int term;
private double rate;
private double principal;
}



Can you explain what the stack trace is?

/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package mortcalcjp2week3; //Declaration for imported swings, text, and awt's used throughout program import java.awt.Container; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.text.DecimalFormat; import javax.swing.BorderFactory; import javax.swing.BoxLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextArea; import javax.swing.JTextField; import javax.swing.border.Border; import javax.swing.border.EmptyBorder; //End of class public class Mortcalcjp2week3 { /** * @param args the command line arguments */ public static void main(String[] args) { // Requestor - Ninfa Pendleton - Rapid City, SD // PRG/421 // August 22, 2011 // Service Request SR-mf-003 Mortgage Payment Calculator. Change Request #4:Write the program in Java (with a graphical // user interface) and have it calculate and display the mortgage payment amount from user input of the amount of the mortgage // and the user's selection from a menu of available mortgage loans: // - 7 years at 5.35% // - 15 years at 5.5% // - 30 years at 5.75% // Use an array for the mortgage data for the different loans. Display the mortgage payment amount followed by // the loan balance and interest paid for each payment over the term of the loan. Allow the user to loop // back and enter a new amount and make a new selection or quit. Please insert comments in the program to // document the program. private int term; private double rate; private double principal; } public class MortCalc extends JFrame implements ActionListener{ int term = 0; double principal = 0; double rate = 0; double monthlyPayment = 0; double interest = 0; DecimalFormat twodigits = new DecimalFormat("#,###.00"); //***Create JPanels and Make JLabels and JTextFields*** JPanel row1 = new JPanel(); JLabel mortgage_label = new JLabel("Mortgage Calculator", JLabel.CENTER); JPanel row2 = new JPanel(new GridLayout(1, 2)); JLabel principal_label = new JLabel("Net Amount $",JLabel.LEFT); JTextField principal_txt = new JTextField(10); JPanel row3 = new JPanel(new GridLayout(1, 2)); JLabel term_label = new JLabel("Term (Yrs)",JLabel.LEFT); JTextField term_txt = new JTextField(10); JPanel row4 = new JPanel(new GridLayout(1, 2)); JLabel rate_label = new JLabel("Interest Rate (%)", JLabel.LEFT); JTextField rate_txt = new JTextField(10); JPanel row5 = new JPanel(new GridLayout(1, 2)); JLabel payment_label = new JLabel("Monthly Payment $", JLabel.LEFT); JTextField payment_txt = new JTextField(10); //***Create JButtons and FlowLayout*** JPanel button = new JPanel(new FlowLayout(FlowLayout.LEFT, 10, 10)); JButton clearButton = new JButton("Reset"); JButton exitButton = new JButton("Exit"); JButton calcButton = new JButton("Calculate"); JButton loan01Button = new JButton("Loan_#01"); JButton loan02Button = new JButton("Loan_#02"); JButton loan03Button = new JButton("Loan_#03"); //***Create JTextArea and JScrollPane*** JTextArea displayArea = new JTextArea(10, 45); JScrollPane scroll = new JScrollPane(displayArea); public MortCalc() { //***Provide a Super Class and Title for Program*** super("Mortgage Calculator SR-MF-003 #5"); } //***Create JMenuBar and Populate it with Commands*** public JMenuBar createMenuBar() { //***Create JMenuBar*** JMenuBar mnuBar = new JMenuBar(); setJMenuBar(mnuBar); //***Create JMenuBar add File*** JMenu mnuFile = new JMenu("File", true); mnuFile.setMnemonic(KeyEvent.VK_F); mnuFile.setDisplayedMnemonicIndex(0); mnuBar.add(mnuFile); //***Create JMenuBar add File & Exit*** JMenuItem mnuFileExit = new JMenuItem("Exit"); mnuFileExit.setMnemonic(KeyEvent.VK_F); mnuFileExit.setDisplayedMnemonicIndex(1); mnuFile.add(mnuFileExit); mnuFileExit.setActionCommand("Exit"); mnuFileExit.addActionListener(this); //***Create JMenuBar add Function*** JMenu mnuFunction = new JMenu("Function", true); mnuFunction.setMnemonic(KeyEvent.VK_F); mnuFunction.setDisplayedMnemonicIndex(0); mnuBar.add(mnuFunction); //***Create JMenuBar add Function & Clear*** JMenuItem mnuFunctionClear = new JMenuItem("Clear"); mnuFunctionClear.setMnemonic(KeyEvent.VK_F); mnuFunctionClear.setDisplayedMnemonicIndex(1); mnuFunction.add(mnuFunctionClear); mnuFunctionClear.setActionCommand("Clear"); mnuFunctionClear.addActionListener(this); //***Create JMenuBar add Function & Fill*** JMenu mnuFunctionAutoFill = new JMenu("Auto Fill"); mnuFunctionAutoFill.setMnemonic(KeyEvent.VK_F); mnuFunctionAutoFill.setDisplayedMnemonicIndex(2); mnuFunction.add(mnuFunctionAutoFill); //***Create JMenuBar add Function & Fill Amount1*** JMenuItem mnuFunctionAutoFillAmount1 = new JMenuItem("Loan_#01"); mnuFunctionAutoFillAmount1.setMnemonic(KeyEvent.VK_F); mnuFunctionAutoFillAmount1.setDisplayedMnemonicIndex(3); mnuFunctionAutoFill.add(mnuFunctionAutoFillAmount1); mnuFunctionAutoFillAmount1.setActionCommand("Loan_#01"); mnuFunctionAutoFillAmount1.addActionListener(this); //***Create JMenuBar add Function & Fill Amount2*** JMenuItem mnuFunctionAutoFillAmount2 = new JMenuItem("Loan_#02"); mnuFunctionAutoFillAmount2.setMnemonic(KeyEvent.VK_F); mnuFunctionAutoFillAmount2.setDisplayedMnemonicIndex(4); mnuFunctionAutoFill.add(mnuFunctionAutoFillAmount2); mnuFunctionAutoFillAmount2.setActionCommand("Loan_#02"); mnuFunctionAutoFillAmount2.addActionListener(this); //***Create JMenuBar add Function & Fill Amount3*** JMenuItem mnuFunctionAutoFillAmount3 = new JMenuItem("Loan_#03"); mnuFunctionAutoFillAmount3.setMnemonic(KeyEvent.VK_F); mnuFunctionAutoFillAmount3.setDisplayedMnemonicIndex(5); mnuFunctionAutoFill.add(mnuFunctionAutoFillAmount3); mnuFunctionAutoFillAmount3.setActionCommand("Loan_#03"); mnuFunctionAutoFillAmount3.addActionListener(this); //***Create JMenuBar add Function & Calculate**** JMenuItem mnuFunctionCalculate = new JMenuItem("Calculate"); mnuFunctionCalculate.setMnemonic(KeyEvent.VK_F); mnuFunctionCalculate.setDisplayedMnemonicIndex(6); mnuFunction.add(mnuFunctionCalculate); mnuFunctionCalculate.setActionCommand("Calculate"); mnuFunctionCalculate.addActionListener(this); //***Create JMenuBar add Function & Amortize Payments*** JMenuItem mnuFunctionAmortizePayments = new JMenuItem("Amortize Payments"); mnuFunctionAmortizePayments.setMnemonic(KeyEvent.VK_F); mnuFunctionAmortizePayments.setDisplayedMnemonicIndex(7); mnuFunction.add(mnuFunctionAmortizePayments); mnuFunctionAmortizePayments.setActionCommand("Amortize Payments"); mnuFunctionAmortizePayments.addActionListener(this); //***Create JMenuBar add Info*** JMenu mnuInfo = new JMenu("Info", true); mnuInfo.setMnemonic(KeyEvent.VK_E); mnuInfo.setDisplayedMnemonicIndex(0); mnuBar.add(mnuInfo); //***Create JMenuBar add Info & About*** JMenuItem mnuInfoAbout = new JMenuItem("About"); mnuInfoAbout.setMnemonic(KeyEvent.VK_E); mnuInfoAbout.setDisplayedMnemonicIndex(1); mnuInfo.add(mnuInfoAbout); mnuInfoAbout.setActionCommand("About"); mnuInfoAbout.addActionListener(this); //***Adjust JFrame Size and Close-Operations*** setSize(800,600); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Container pane = getContentPane(); Border rowborder = new EmptyBorder( 3, 10, 3, 10 );// Sets Border Size //***Set Pane and Row Properties*** pane.add(row1); row1.add(mortgage_label); row1.setMaximumSize( new Dimension( 10000, row1.getMinimumSize().height)); row1.setBorder( rowborder); pane.add(row2); row2.add(principal_label); row2.add(principal_txt); row2.setMaximumSize( new Dimension( 10000, row2.getMinimumSize().height)); row2.setBorder( rowborder); pane.add(row3); row3.add(term_label); row3.add(term_txt); row3.setMaximumSize( new Dimension( 10000, row3.getMinimumSize().height)); row3.setBorder( rowborder); pane.add(row4); row4.add(rate_label); row4.add(rate_txt); row4.setMaximumSize( new Dimension( 10000, row4.getMinimumSize().height)); row4.setBorder( rowborder); pane.add(row5); row5.add(payment_label); row5.add(payment_txt); payment_txt.setEnabled(false); row5.setMaximumSize( new Dimension( 10000, row5.getMinimumSize().height)); row5.setBorder( rowborder); button.add(calcButton); button.add(clearButton); button.add(exitButton); pane.add(button); button.setMaximumSize( new Dimension( 10000, button.getMinimumSize().height)); scroll.setBorder(BorderFactory.createEmptyBorder(10,10,10,10)); pane.add(scroll); pane.setLayout(new BoxLayout( pane, BoxLayout.Y_AXIS)); setVisible(true); setContentPane(pane); //***Add Listeners*** clearButton.addActionListener(this); exitButton.addActionListener(this); calcButton.addActionListener(this); loan01Button.addActionListener(this); loan02Button.addActionListener(this); loan03Button.addActionListener(this); return mnuBar;// End JMenuBar Creation } //***Create commands for JMenuBar*** @Override public void actionPerformed(ActionEvent event) { Object source = event.getSource(); //Begin "if" function if (source == calcButton) // calculates on hit { validateUserInput(principal_txt, rate_txt, term_txt); // validates input //formula for calculation output monthlyPayment = principal * (rate / (12 * 100)) / (1 - Math.pow(1 + (rate / (12 * 100)), -1 * (term * 12))); payment_txt.setText("" + twodigits.format(monthlyPayment)); } if (source == clearButton) // Clears on hit { term_txt.setText(" "); rate_txt.setText(" "); principal_txt.setText(" "); payment_txt.setText(" "); displayArea.setText(" "); } if (source == exitButton) // Exits on hit { System.exit(0); } }//end action } //Declaration of user input for each variable public void validateUserInput(JTextField principal_txt, JTextField rate_txt, JTextField term_txt) { //Begin "try/catch" function try { principal = Double.parseDouble(principal_txt.getText()); } catch (NumberFormatException e)//Action listener { //Function to validate if input is from user is numeric and if not output error message JOptionPane.showMessageDialog(null, "Enter Numeric Value Only for Net!", "INVALD ENTRY", JOptionPane.ERROR_MESSAGE); } try { term = Integer.parseInt(term_txt.getText()); } catch (NumberFormatException e) { JOptionPane.showMessageDialog(null, "Enter Numeric Value Only for Term!", "INVALD ENTRY", JOptionPane.ERROR_MESSAGE); } try { rate = Double.parseDouble(rate_txt.getText()); } catch (NumberFormatException e) { JOptionPane.showMessageDialog(null, "Enter Numeric Value Only for Rate!", "INVALD ENTRY", JOptionPane.ERROR_MESSAGE); } } }

Let us continue the discussion of the actual code problem here

I tried that and when I previewed it didn't look any different than if I was to just paste the code I have in here. To make sure I understand do I paste the code first then click on the "code" button?