Dustin Schreader

I'm having trouble figuring out what I'm doing wrong that I'm getting the error no line found. Here is my code. I'm having the problem on line 120 and 19
import java.io.*; import java.util.*; public class mainPharmacyCarousel { static Scanner console = new Scanner(System.in); public static void main(String[] args) { CarouselList2 carouselList = new CarouselList2(); int choice; String drug; try { Scanner infile = new Scanner(new FileReader("pharmData.txt")); createCarouselList(infile, carouselList); displayMenu(); System.out.print("Enter the choice: "); choice = console.nextInt(); console.nextLine(); System.out.println(); while (choice != 9) { switch (choice) { case 1: System.out.print("Enter the drug: "); drug = console.nextLine(); System.out.println(); if (carouselList.drugSearch(drug)) System.out.println("The Carousel has " + drug); else System.out.println("The carousel does not have " + drug); break; case 2: System.out.print("Enter the drug: "); drug = console.nextLine(); System.out.println(); if (carouselList.drugSearch(drug)) { if (carouselList.isDrugAvailable(drug)) { carouselList.drugCheckOut(drug); System.out.println("The drug removed is: " + drug); } else System.out.println("There is no " + drug + " in the carousel"); } else System.out.println("The carousel does not have " + drug); break; case 3: System.out.print("Enter the drug: "); drug = console.nextLine(); System.out.println(); if (carouselList.drugSearch(drug)) { carouselList.drugCheckIn(drug); System.out.println("You returned " + drug); } else System.out.println("The carousel does not have " + drug); break; case 4: System.out.print("Enter the drug: "); drug = console.nextLine(); System.out.println(); if (carouselList.drugSearch(drug)) { if (carouselList.isDrugAvailable(drug)) System.out.println(drug + " is currently in the carousel"); else System.out.println(drug + " is not in the carousel"); } else System.out.println("The carousel does not carry " + drug); break; case 5: carouselList.drugPrintDrug(); break; case 6: carouselList.print(); break; default: System.out.println("Invalid " + "selection"); }//end switch displayMenu(); System.out.print("Enter the choice: "); choice = console.nextInt(); console.nextLine(); System.out.println(); }//end while } catch (FileNotFoundException fnfe) { System.out.println(fnfe.toString()); } } // end main public static void createCarouselList(Scanner infile, CarouselList2 carouselList) { String dName; String dRoute; String dInteraction; int amount; Carousel newCarousel; while (infile.hasNext()) { dName = infile.nextLine(); dRoute = infile.nextLine(); dInteraction = infile.nextLine(); amount = infile.nextInt(); infile.nextLine(); newCarousel = new Carousel(); newCarousel.setCarouselInfo(dName, dRoute, dInteraction, amount); carouselList.insertFirst(newCarousel); }//end while }//end createCarouselList public static void displayMenu() { System.out.println("Select one of the following: "); System.out.println("1: To check if a particular drug is in the carousel"); System.out.println("2: To dispense a drug"); System.out.println("3: To return a drug"); System.out.println("4: To see if a particular drug is in the carousel"); System.out.println("5: To show each drug that is in the carousel"); System.out.println("6: To show a list of all the drugs"); System.out.println("9: To exit"); } }

I get pretty confused when I have too many nested for loops. I've just about got this thing to work, it's reading in from a CSV file and I've got it to save one line of the CSV file to one portion of the array but it's only the last line from the CSV file. Any idea how to get the array to contain every row of the CSV file or maybe a more simple way to accomplish this?
import java.io.*; import java.util.*; public class StudentClass { public static void main(String args[]) throws IOException { BufferedReader studentCSV = new BufferedReader(new FileReader("students.csv")); String dataRow = studentCSV.readLine(); String[] rows = new String[11]; String[] dataArray = new String[11]; while (dataRow != null){ dataArray = dataRow.split(","); for (int x = 0; x<11; x++){ if (x < 10){ rows[x] = (dataArray[x] + ","); } else{ rows[x] = (dataArray[x]); } } dataRow = studentCSV.readLine(); // Read next line of data. for (int l = 1; l<rows.length; l++){ rows[0] = rows[0] + rows[l]; } } // Close the file once all data has been read. studentCSV.close(); System.out.println(rows[0]); } //main() } // CSVRead

I got it to work with the read(); thanks for the help. I tried it with the Scanner but I got the same problem.

Ok this sounds simple enough but here is my problem, when I try to choose option 6 I prompt the console to have an item entered but no input text option pops up it just goes straight into prompting to Please enter price and just skips over entering item. Not really sure what I'm doing wrong here.
import java.io.*; import java.util.*; class TestVending { public static void main(String args[]) throws IOException { VendingMachine salesItem = new VStack(8); VendingMachine vM = new VStack(8); char cmd = 'w'; int change = 0; String code = ""; int price = 0; int credit = 0; String inCredit = ""; String item = ""; /*String allItems[][] = new String[4][3]; allItems[0][0] = "001"; allItems[0][1] = "Gummy"; allItems[0][2] = "1"; allItems[0][3] = "5"; */ BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); System.out.println("Vending options"); System.out.println("1: Buy"); System.out.println("2: Get change"); System.out.println("3: Check item price"); System.out.println("4: Check change"); System.out.println("5: Machine status"); System.out.println("6: Add new item"); System.out.println("7: Change Item price"); System.out.println("8: Add money"); System.out.println("9: Remove money"); System.out.println("D: Display items"); System.out.println("Q: Quit"); System.out.println(); do { System.out.print("Command: "); // Read command cmd = (char)System.in.read(); switch ( cmd ) { case '1' : // buy System.out.println("Enter item code: "); if (vM.isEmpty() == true) { System.out.print("no more item left"); } else if(credit >= vM.itemPrice(code)){ credit = vM.itemBought(code, credit); item = vM.itemCode(code); System.out.println("Bought " + item); System.out.println("Money left: " + credit); } else System.out.println("Not enough money :("); break; case '2' : // get change System.out.println("Change: " + change); break; case '3' : // check item price System.out.println(item + " costs: " + price); break; case '4' : // check change System.out.println("Change: " + change); break; case '5' : // Machine status if ( vM.isEmpty() ) System.out.println("Stack is full"); else System.out.println("Stack is NOT full"); break; case '6' : // Add new item System.out.println("Please enter item: "); item = in.readLine(); System.out.println("Please enter price: "); inCredit = in.readLine(); credit = Integer.parseInt(inCredit); System.out.println("Please enter code: "); code = in.readLine(); vM.addItem(item, credit, code); break; case '7' : // Change Item price System.out.println("Enter Item and price:"); break; case '8' : // Add money System.out.println("How much money do you want to add?"); break; case '9' : // Remove money System.out.println("How much money do you want to remove? A-All or amount."); break; case 'Q' : case 'q' : // Quit test program break; default : // Invalid command if (!(Character.isWhitespace(cmd))) System.out.println("Inactive or invalid command"); } // switch } while ( cmd != 'Q' && cmd != 'q' ); } }

Thank you for your help. I figured the string wasn't being parsed correctly if I'm saying that right, so I did eventually fall upon the chomp method!

I've been looking around about how to find string equality and from what I've seen I just need to use eq but if AT is entered into the following code it's saying its not equal and i'm not sure why.

#!/usr/bin/perl -w # Calculating the reverse complement of a strand of DNA # The DNA print "Enter sequence\n"; $DNA = <>; # Print the DNA onto the screen print "Starting DNA:\n\n"; print "$DNA\n\n"; $revcom = reverse $DNA; $revcom =~ tr/ACGTacgt/TGCAtgca/; print "The reverse complement DNA:\n\n"; print "$revcom\n\n"; if ($revcom eq $DNA){ print "DNA is a Palindrome!\n\n"; }else{ print "DNA is not a Palindrome :(\n\n"; } exit;

Very cool, It works now and I only had to change weekday - 1! Thank you!

I have this method that is supposed to display the day of week given the preferred month, day, and year. When I test this method I get the wrong day and if I try to enter a higher number for the day such as 17 I get an arrayIndexOutofBoundsException: 7. I'm using the gregorianCalendar. Am I not correctly using DAY_OF_WEEK?

private String dayOfWeek ( int month, int day, int year) // Returns the day of the week corresponding to the specified day. { calendar.set(Calendar.YEAR, year); calendar.set(Calendar.MONTH, month - 1); calendar.set(Calendar.DAY_OF_MONTH, day); int weekday = calendar.get(Calendar.DAY_OF_WEEK); return wkDay[weekday]; } public void displayCalendar (int month, int day, int year) // Displays a logbook using the traditional calendar format. { System.out.println(String.format("%28s", year)); System.out.println(String.format("%28s", month(month))); System.out.println(dayOfWeek(month, day, year)); }

I got it working
import java.io.*; import java.util.*; public class StudentClass { public static void main(String args[]) throws IOException { List<String> cs = new ArrayList<String>(); List<String> other = new ArrayList<String>(); List<String> head = new ArrayList<String>(); String major = "CS"; String title = "firstName"; String exception = "CSCS"; BufferedReader studentCSV = new BufferedReader(new FileReader("students.csv")); String dataRow = studentCSV.readLine(); while (dataRow != null){ String[] dataArray = dataRow.split(","); /**for (String item:dataArray){ System.out.print(item + "\t"); } **/ if (dataRow.contains(title) == true){ head.add(dataRow); } else if (dataRow.contains(exception) == true){ other.add(dataRow); } else if (dataRow.contains(major) == true){ cs.add(dataRow); } else { other.add(dataRow); } System.out.println(); // Print the data line. dataRow = studentCSV.readLine(); // Read next line of data. } Collections.sort(cs); Collections.sort(other); //System.out.println(head); System.out.println(cs); //System.out.println(other); // Close the file once all data has been read. studentCSV.close(); // End the printout with a blank line. System.out.println(); } //main() } // CSVRead

So I've just about got it complete except when the if statement is executed it adds a data row to other arrayList every time the item isn't CS. So I figured the best way to add a dataRow to the other arrayLists is only when CS isn't showing up in the 3rd column. So instead of doing something like this:

if (item.contains(major) == true)

So I tried to do this

if (dataArray[2].contains(major) == true)

But that didn't work

import java.io.*; import java.util.*; public class StudentClass { public static void main(String args[]) throws IOException { List cs = new ArrayList(); List other = new ArrayList(); String major = "CS"; BufferedReader studentCSV = new BufferedReader(new FileReader("students.csv")); String dataRow = studentCSV.readLine(); while (dataRow != null){ String[] dataArray = dataRow.split(","); for (String item:dataArray){ if (dataArray[2].contains(major) == true){ cs.add(dataRow); } else other.add(dataRow); System.out.print(item + "\t"); } System.out.println(); // Print the data line. dataRow = studentCSV.readLine(); // Read next line of data. } System.out.println(cs); System.out.println(other); // Close the file once all data has been read. studentCSV.close(); // End the printout with a blank line. System.out.println(); } //main() } // CSVRead

Yeah I figured that wouldn't work so well So I revised it a little. This is what I have now.

import java.io.*; import java.util.*; public class StudentClass { public static void main(String args[]) throws IOException { List cs = new ArrayList(); List other = new ArrayList(); BufferedReader studentCSV = new BufferedReader(new FileReader("students.csv")); String dataRow = studentCSV.readLine(); while (dataRow != null){ String[] dataArray = dataRow.split(","); for (String item:dataArray){ if (dataArray.contains("cs") == true){ cs.add(dataArray); } else other.add(dataArray); System.out.print(item + "\t"); } System.out.println(); // Print the data line. dataRow = studentCSV.readLine(); // Read next line of data. } // Close the file once all data has been read. studentCSV.close(); // End the printout with a blank line. System.out.println(); } //main() } // CSVRead

How do I get the value of the third item in the array into a variable to test it against cat?

ok well, I decided to go with a different format because I like the gui better. I copied it from another source so now i'm trying to figure out how to get the drop down box in the upper left side and I do not need a button, I would like to have SMH, RMH, Both used as the pavilion when they are selected without having to click an apply type of button.
import java.awt.*; import java.awt.event.*; import javax.swing.*; public class ServiceMaster extends JFrame { static final String pavilionList[] = {"SMH", "RMH", "BOTH"}; final static int maxGap = 20; JComboBox comboBox; JButton applyButton = new JButton("Apply gaps"); GridLayout experimentLayout = new GridLayout(0,2); public ServiceMaster(String name) { super(name); setResizable(false); } public void initGaps() { comboBox = new JComboBox(pavilionList); } public void addComponentsToPane(final Container pane) { initGaps(); final JPanel compsToExperiment = new JPanel(); compsToExperiment.setLayout(experimentLayout); JPanel controls = new JPanel(); controls.setLayout(new GridLayout(2,3)); //Set up components preferred size JButton b = new JButton("Just fake button"); Dimension buttonSize = b.getPreferredSize(); compsToExperiment.setPreferredSize(new Dimension((int)(buttonSize.getWidth() * 2.5)+maxGap, (int)(buttonSize.getHeight() * 3.5)+maxGap * 2)); //Add buttons to experiment with Grid Layout controls.add(comboBox); controls.add(applyButton); compsToExperiment.add(new JButton("Button 1")); compsToExperiment.add(new JButton("Button 2")); compsToExperiment.add(new JButton("Button 3")); compsToExperiment.add(new JButton("Long-Named Button 4")); compsToExperiment.add(new JButton("5")); //Add controls to set up horizontal and vertical gaps controls.add(new Label("Horizontal gap:")); controls.add(new Label("Vertical gap:")); controls.add(new Label(" ")); //Process the Apply gaps button press applyButton.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e){ //Get the pavillion value String pavillion = (String)comboBox.getSelectedItem(); //Set up the horizontal gap value // experimentLayout.setPavillion(pavillion); //Set up the layout of the buttons experimentLayout.layoutContainer(compsToExperiment); } }); pane.add(compsToExperiment, BorderLayout.NORTH); pane.add(new JSeparator(), BorderLayout.CENTER); pane.add(controls, BorderLayout.SOUTH); } /** * Create the GUI and show it. For thread safety, * this method is invoked from the * event dispatch thread. */ private static void createAndShowGUI() { //Create and set up the window. ServiceMaster frame = new ServiceMaster("Service Master"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //Set up the content pane. frame.addComponentsToPane(frame.getContentPane()); //Display the window. frame.pack(); frame.setVisible(true); } public static void main(String[] args) { /* Use an appropriate Look and Feel */ try { //UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel"); UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel"); } catch (UnsupportedLookAndFeelException ex) { ex.printStackTrace(); } catch (IllegalAccessException ex) { ex.printStackTrace(); } catch (InstantiationException ex) { ex.printStackTrace(); } catch (ClassNotFoundException ex) { ex.printStackTrace(); } /* Turn off metal's use of bold fonts */ UIManager.put("swing.boldMetal", Boolean.FALSE); //Schedule a job for the event dispatch thread: //creating and showing this application's GUI. javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { createAndShowGUI(); } }); } }

I'm new to using gridlayout and combo boxs. I would like to get a combo box with three options, Saint Mary's hospital, Methodist, and both. Once an option is selected a search (textfield) will look through that certain list for certain names. This is what I have so far and I'm just trying to figure out how to get the combo box to appear.

import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.JButton; import javax.swing.JFrame; public class ServiceMaster { final static boolean shouldFill = true; final static boolean shouldWeightX = true; final static boolean RIGHT_TO_LEFT = false; public static void addComponentsToPane(Container pane) { if (RIGHT_TO_LEFT) { pane.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT); } JButton button; pane.setLayout(new GridBagLayout()); GridBagConstraints c = new GridBagConstraints(); if (shouldFill) { //natural height, maximum width c.fill = GridBagConstraints.HORIZONTAL; } button = new JButton("Button 1"); if (shouldWeightX) { c.weightx = 0.5; } c.fill = GridBagConstraints.HORIZONTAL; c.gridx = 0; c.gridy = 0; pane.add(button, c); String[] petStrings = { "Bird", "Cat", "Dog", "Rabbit", "Pig" }; //Create the combo box, select item at index 4. //Indices start at 0, so 4 specifies the pig. JComboBox petList = new JComboBox(petStrings); petList.setSelectedIndex(4); c.fill = GridBagConstraints.HORIZONTAL; c.weightx = 0.5; c.gridx = 1; c.gridy = 0; pane.add(button, c); button = new JButton("Button 3"); c.fill = GridBagConstraints.HORIZONTAL; c.weightx = 0.5; c.gridx = 2; c.gridy = 0; pane.add(button, c); button = new JButton("Long-Named Button 4"); c.fill = GridBagConstraints.HORIZONTAL; c.ipadx = 200; c.ipady = 100; //make this component tall c.weightx = 0.0; c.gridwidth = 3; c.gridx = 0; c.gridy = 1; pane.add(button, c); button = new JButton("5"); c.fill = GridBagConstraints.HORIZONTAL; c.ipady = 0; //reset to default c.weighty = 1.0; //request any extra vertical space c.anchor = GridBagConstraints.PAGE_END; //bottom of space c.insets = new Insets(10,20,20,20); //top padding c.gridx = 0; //aligned with button 1 c.gridwidth = 3; //3 columns wide c.gridy = 2; //third row pane.add(button, c); } /** Listens to the combo box. */ public void actionPerformed(ActionEvent e) { JComboBox cb = (JComboBox)e.getSource(); String petName = (String)cb.getSelectedItem(); updateLabel(petName); } protected void updateLabel(String name) { /* ImageIcon icon = createImageIcon("images/" + name + ".gif"); picture.setIcon(icon); picture.setToolTipText("A drawing of a " + name.toLowerCase()); if (icon != null) { picture.setText(null); } else { picture.setText("Image not found"); } */ } /** Returns an ImageIcon, or null if the path was invalid. protected static ImageIcon createImageIcon(String path) { java.net.URL imgURL = ComboBoxDemo.class.getResource(path); if (imgURL != null) { return new ImageIcon(imgURL); } else { System.err.println("Couldn't find file: " + path); return null; } } */ /** * Create the GUI and show it. For thread safety, * this method should be invoked from the * event-dispatching thread. */ private static void createAndShowGUI() { //Create and set up the window. JFrame frame = new JFrame("Service Master"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //Set up the content pane. addComponentsToPane(frame.getContentPane()); //Display the window. frame.pack(); frame.setVisible(true); } public static void main(String[] args) { //Schedule a job for the event-dispatching thread: //creating and showing this application's GUI. javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { createAndShowGUI(); } }); } }

Yup that is correct. Well I might as well put the rest of my code out there. This is my DropOutStack Class maybe it would be easier to override the toString in here? I guess I'm kinda confused about some of the code you added and how it works like this part. return stackTop == null ? "" : stackTop.printStack();
public class DropOutStack<T> extends LinkedStackClass<T> { final static int DEFAULT_SIZE = 5; int size; int count = 0; public DropOutStack() { super(); size = DEFAULT_SIZE; } public void push(T newElement) { super.push(newElement); count++; StackNode<T> current = stackTop; StackNode<T> previous = null; if (count > size) { while (current != null) { previous = current; current = current.link; } previous.link = null; count--; } } public void pop() throws StackUnderflowException { super.pop(); count--; if (count <= 0) stackTop = null; } public void setSize(int size) { if (size > 0) this.size = size; else throw new NumberFormatException("dropout size invalid"); } }