I keep get a resolved to a variable error

[Glen Lacock]

He is the error I am geting
and help would be great.
thank you

Exception in thread "main" java.lang.Error: Unresolved compilation problem:
rate1 cannot be resolved to a variable

at javax.awt.event.glenhomeMortgage.init(glenhomeMortgage.java:76)
at javax.awt.event.glenhomeMortgage.main(glenhomeMortgage.java:148)

package javax.awt.event;

//glen mortgege.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.text.*;

public class glenhomeMortgage extends JApplet {
	private static final long serialVersionUID = 1L;
	private String[] terms={"7","15","30"};
	private JLabel amountLabel=new JLabel("Loan amount: ");
	private JTextField amount=new JTextField();
	private JLabel termLabel=new JLabel("Term: ");
	private JTextField term=new JTextField();
	private JLabel rateLabel=new JLabel("Interest rate: ");
	private JTextField rate=new JTextField();
	private JComboBox termList = new JComboBox(terms);
	private JLabel payLabel=new JLabel("Monthly Payment: ");
	private JLabel payment=new JLabel();
	private JButton calculate=new JButton("Calculate");
	private JButton exit=new JButton("Exit");
	private JTextArea paymentSchedule=new JTextArea();
	private JScrollPane schedulePane=new JScrollPane(paymentSchedule);
	private Container cp = getContentPane(); 

	public void init() {
		try {
			 
			//Reading interest rate from source file

			File file = new File("TermRate.txt");
			String[] rate1 = new String[4];

			BufferedReader bufRdr  = new BufferedReader(new FileReader(file));

			String line = null;
			int row =0;

			//read each line of text file
			while((line = bufRdr.readLine()) != null)
					{

							rate1[row] = line.trim();
							row++;

					}


		//close the file
			bufRdr.close();


			}
		 catch (Exception e) {
			System.out.println("ERR: " + e.getMessage());
		 }
		// Take care of termList	
		termList.setSelectedIndex(0);
		termList.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				JComboBox cb = (JComboBox)e.getSource(); 
				// the source of the event is the combo box
        		String termYear = (String)cb.getSelectedItem();
        		term.setText(termYear);
        		int index=0;
        		switch (Integer.parseInt(termYear)) {
        			case 7: index=0; break;
        			case 15: index=1; break;
        			case 30: index=2; break;
        		}
				rate.setText(rate1[index]+"");
			}
		});
		
		// Take care of three buttons
		calculate.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				try {
					// calculate the monthly payment
					double p=Double.parseDouble(amount.getText());
					double r=Double.parseDouble(rate.getText())/12;
					double n=Integer.parseInt(term.getText())*12;
					double monthlyPayment=p*Math.pow(1+r,n)*r/(Math.pow(1+r,n)-1);
					DecimalFormat df = new DecimalFormat("$###,###.00");
					payment.setText(df.format(monthlyPayment));
					// calculate the detailed loan
					double principal=p;
					int month;
					StringBuffer buffer=new StringBuffer();
					buffer.append("Month\tAmount\tInterest\tBalance\n");
					for (int i=0; i<n; i++) {
						month=i+1;
						double interest=principal*r;
						double balance=principal+interest-monthlyPayment;
						buffer.append(month+"\t");
						buffer.append(new String(df.format(principal))+"\t");
						buffer.append(new String(df.format(interest))+"\t");
						buffer.append(new String(df.format(balance))+"\n");
						principal=balance;
					}
					paymentSchedule.setText(buffer.toString());
				} catch(Exception ex) {
					System.out.println(ex);
				}
			}
		});
		
		
		exit.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				System.exit(1);
			}
		});
		//part of the interface
		JPanel downScreen=new JPanel();
		downScreen.setLayout(new GridLayout(6,6));
		downScreen.add(amountLabel); 
		downScreen.add(amount);	
		downScreen.add(termLabel); 
		downScreen.add(term);
		downScreen.add(new Label());
		downScreen.add(termList);
		downScreen.add(rateLabel); 
		downScreen.add(rate);
		downScreen.add(payLabel); 
		downScreen.add(payment);
		JPanel buttons=new JPanel();
		buttons.setLayout(new BoxLayout(buttons, BoxLayout.X_AXIS));
		buttons.add(calculate); buttons.add(exit);
		
		JPanel down=new JPanel();
		down.add(downScreen); down.add(buttons);
		cp.add(BorderLayout.PAGE_END, down);
		cp.add(BorderLayout.CENTER, schedulePane);
	}
	public static void main(String[] args) {
		JApplet applet = new glenhomeMortgage();
		JFrame frame = new JFrame("Glen Mortgage Calculator");
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setResizable(false);
		frame.getContentPane().add(applet);
		frame.setSize(400,400);
		applet.init();
		applet.start();
		frame.setVisible(true);
	}
}

[fred rosenberger]

rate1 is declared inside the try-block between lines 32-58. So when you leave the try, it falls out of scope, and therefore doesn't exist when you get to line 76.

[Campbell Ritchie]

Welcome to the Ranch

Don't run anything from your IDE until all the compilation errors have been sorted. The error messages from the IDE are usually more helpful than the runtime errors.
Not being able to find rate1 might mean you have spelt it differently; even the tiniest error will throw the compiler. If you declared it as Rate1 and try to use it as rate1, it cannot be found. By the way: rate1 with a small r is correct.
Another possibility is that you are dealing with a local variable; if you are outwith the {} pair rate1 was declared in, it will be out of scope and inaccessible.

[Jesper de Jong]

Welcome to the Ranch, Glen!

Glen Lacock wrote:
Exception in thread "main" java.lang.Error: Unresolved compilation problem:
rate1 cannot be resolved to a variable

This is a strange kind of error to get - it might mean that some of your compiled class files are out-of-sync with your source code files.

Try to delete all your *.class files and re-compile all your source files again; or if you're using an IDE, try "rebuild all" to make it re-compile all your source files.

[Campbell Ritchie]

Only rob is allowed to beat my by 1 minute, Fred

[fred rosenberger]

Campbell Ritchie wrote:Only rob is allowed to beat my by 1 minute, Fred

1 minute, 3 seconds!!!

[Campbell Ritchie]

fred rosenberger wrote:1 minute, 3 seconds!!!

Rob would have managed 0 minutes 3 seconds