Linking a Java class to a Swing GUI...

Question

Well I've got a class for running a text based interface for a simple queue system. All I need to do is link it to the GUI i have designed. Below is the code for both. Anyone that can give me code to link the classes between them (I'm going to change the uuInOut statements to .getText() where relevant).
Thanks for the help. My bloodpressure and stress levels need it.
import uuInOut;
class Queue
     QueueNode start;
     QueueNode end;
     public int totalSize = 0;
     public int choice;
     public String yesNo;
     public Queue()
                    start = new QueueNode();
                    start = null;
                    end = new QueueNode();
                    end = null;
     public void add()
          if (start==null)
               start = new QueueNode();
               System.out.print("\nPlease enter your username: ");
               start.owner = uuInOut.ReadString();
               System.out.print("\nPlease enter the name of the document:");
               start.name = uuInOut.ReadString();
               System.out.print("\nPlease enter the size of the document(in kilbytes):");
               start.size = uuInOut.ReadInt();     
               totalSize = totalSize + start.size;
               start.next = null;
               start.previous = null;
               end = start;
          else
               QueueNode temp = new QueueNode();
               System.out.print("\nPlease enter your username: ");
               temp.owner = uuInOut.ReadString();
               System.out.print("\nPlease enter the name of the document:");
               temp.name = uuInOut.ReadString();
               System.out.print("\nPlease enter the size of the document(in kilobytes):");
               temp.size = uuInOut.ReadInt();     
               totalSize = totalSize + temp.size;
               temp.next = end;
               end.previous = temp;
               end = temp;
     public boolean isEmpty()
          return (start==null);
     public void remove()
          String name2;
          QueueNode before = new QueueNode();
          QueueNode after = new QueueNode();
          QueueNode temp = new QueueNode();
          if (this.isEmpty())
                    System.out.println("Error there are no documents in the queue.");
               else
                    do
                         System.out.println("Which document do you wish to remove: ");
                         name2 = uuInOut.ReadString();
                         while(temp.name!=name2)
                              before = temp.previous;
                              after = temp.next;
                              temp.next = after;
                              temp.previous = before;
                              temp = before;
                              System.out.println("\nThe document has been removed");
                    System.out.print("\nDo you wish to remove another document: ");
                    yesNo = uuInOut.ReadString();
                    }while(this.yesNo.equalsIgnoreCase("y"));
     public void displayAll()
          if (this.isEmpty())
               System.out.println("\nThere are no documents to display.");
          else
               System.out.println("User\t\tDoc Name\t\tSize\n");
               QueueNode temp = new QueueNode();
               temp = start;
               while (temp!=null)
                    System.out.println(temp.owner+"\t\t"+temp.name+"\t\t\t"+temp.size);
                    temp = temp.previous;          
     public int getSize()
          return totalSize;
     public void purge()
          if (this.isEmpty())
               System.out.println("\nThere are no documents in the queue.");
          else
               start = new QueueNode();
               start = null;
               end = new QueueNode();
               end = null;
               totalSize = 0;
               System.out.println("The queue is now empty.");
     public void displayMenu()
          System.out.println("\n\t\tMain Menu");
          System.out.println("\n\t1.\tAdd a document to the Queue");
          System.out.println("\t2.\tRemove a document from the Queue");
          System.out.println("\t3.\tDisplay all documents in the Queue");
          System.out.println("\t4.\tDisplay the total size of the Queue");
          System.out.println("\t5.\tPrint a document");
          System.out.println("\t6.\tPurge all documents from the Queue");
          System.out.println("\n\t8.\tExit Program");
          System.out.flush();
     public void print(String name2)
          if(this.isEmpty())
               System.out.println("\nThere are no documents to print.");
          else
               System.out.println("Printed");
Here's the code for the GUI (there seems to be a problem with it which I cant seem to figure out)
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import Queue.*;
import QueueNode;
public class PrinterQueueInterface extends JFrame implements ActionListener
     JLabel nameLabel, userLabel, sizeLabel, numberLabel, totalLabel;
     JTextField nameBox, userBox, sizeBox, numberBox, totalBox;
     JButton addButton, removeButton, printButton, purgeButton, exitButton;
     public PrinterQueueInterface()
          super("Queue System");
          setSize(350,360);
          setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          nameLabel = new JLabel("Name:");
          userLabel = new JLabel("User:");
          sizeLabel = new JLabel("Size:");
          numberLabel = new JLabel("No. Of Items in Queue:");
          totalLabel = new JLabel("Total Size of the Queue:");
          nameBox = new JTextField(15);
          userBox = new JTextField(15);
          sizeBox = new JTextField(5);
          numberBox = new JTextField(3);
          totalBox = new JTextField(15);
          addButton = new JButton("Add Document");
          removeButton = new JButton("Remove Document");
          printButton = new JButton("Print Document");
          purgeButton = new JButton("Purge the Queue");
          exitButton = new JButton("Exit");
          JPanel pane = new JPanel();
          setContentPane(pane);
          show();
          Container contentPane = getContentPane();
          contentPane.setLayout(new GridLayout(0,2));
          setLayout(new BoxLayout(this,BoxLayout.Y_AXIS));
          contentPane.add(nameLabel);
          contentPane.add(nameBox);          
          contentPane.add(userLabel);
          contentPane.add(userBox);
          contentPane.add(sizeLabel);
          contentPane.add(sizeBox);
          contentPane.add(numberLabel);
          contentPane.add(numberBox);
          contentPane.add(totalLabel);
          contentPane.add(totalBox);
          setLayout(new BoxLayout(this,BoxLayout.Y_AXIS));
          contentPane.add(addButton);
          contentPane.add(removeButton);
          contentPane.add(printButton);
          contentPane.add(purgeButton);
          contentPane.add(exitButton);
          addButton.setLocation(50,100);
          removeButton.setLocation(10, 100);
          printButton.setLocation(20,100);
          purgeButton.setLocation(30,100);
          exitButton.setLocation(40,100);
          addButton.addActionListener(this);
          removeButton.addActionListener(this);
          printButton.addActionListener(this);
          purgeButton.addActionListener(this);
          exitButton.addActionListener(this);
          public void actionPerformed(ActionEvent evt)
               Object source = evt.getSource();
               if (source==exitButton)
                    System.exit(0);
               else if (source==clearButton)
                    nameBox.setText("");
                    userBox.setText("");
               else
                    public String docName = nameBox.getText();
                    public String userName = userBox.getText();
                    public String docSize = sizeBox.getText.toInt();
                    if (source==addButton)
                         Queue.add(docName, userName, docSize);
                    else if (source==removeButton)
                         Queue.remove(docName, userName, docSize);
                    else if (source==printButton)
                         Queue.print();
                    else if (source==purgeButton)
                         Queue.purge();
          public void main(String[] args)
               new PrinterQueueInterface();
}

Answer 1

It is simple and very annoying.
I think you should try to do it yourself to learn how Java works, it is a good exercise for you.
The forum is used to work together on different problems, giving tips and ideas but not coding for other people.
About your problem, two things : you should rewrite all the code (not trying to link these two classes) and you will have serious problems wityh the different setLayout you use !
Denis