Please, i am writing a project on implementation of Rivest-Shamir-Adleman(RSA) algorithm on local area network(LAN).But the JAVA program i wrote refused to work. please, can anyone help me with this.The program is given below is only a part of the entire program due to space constraint. The remain program will be sent in the next post.Thanks
Code:
  import java.awt.*;
   import java.awt.event.*;
   import javax.swing.*;
   import java.lang.*;
public class My_RSA extends JFrame {
               private Container  container;
               private JFrame iFrame,jFrame, kFrame;
               private GridBagLayout layout;
               private GridBagConstraints constraints;
               private JTextField nField, dField;
               private JTextArea messageArea, cypherArea, plainArea,keysArea;
               private  JScrollPane messagescroll, cypherScroll, plainScroll;
               private JButton readButton, sendButton, okButton, cancelButton;
               private JPanel jPanel, nPanel,dPanel, okPanel,myPanel, mePanel,
   statusPanel, progressPanel,cancelPanel;
               private JPanel boardPanel1, boardPanel2, cypherPanel,plainPanel, 
  messagePanel, readPanel, sendPanel;
               private JLabel emptyLabel, jLabel, nLabel, dLabel, dumLabel1, dumLabel2, 
   statusLabel;
               private  JLabel emptyLabel1,  emptyLabel2 , emptyLabel3, emptyLabel4;
               private  JPanel emptyPanel,  emptyPanel1, emptyPanel2, emptyPanel3,
    emptyPanel4;
                private String message = "", plaintext = "", cyphertext = "", publish = "";
                private long d, e, m, n, p, q;
                 private final JProgressBar  current = new JProgressBar(0, 100);
           
                     private  KeyGenerator gen;
                     private  Encryption enc;
                     private  Decryption dec;
                     private  Sending go;
  public My_RSA()
   {
                Super("RSA Encryption System");

                 Container = getContentPane();
                 layout = new GridBagLayout();
                 container.setLayout(layout);
                 constraints = new GridBagConstraints();
                 gen = new KeyGenerator();
                 kFrame = new JFrame("Sending...");
                 mePanel = new JPanel();
                 mePanel.setLayout(layout);
                 progressPanel = new JPanel();
                 progressPanel.add(current);
                   cancelPanel = new JPanel();
                   statusPanel = new JPanel();
                   statusPanel = new JLabel(" From A to B");
                   statusPanel.add(statusLabel);
                   cancelButton = new JButton("cancel");
                   cancelButton.addActionListener(
              new ActionListener() {
                             public void actionPerformed(ActionEvent event)
                             {
                                            Current.setValue(0);
                                             kFrame.setVisible(false);
                                }
                     }
  );
   Current.setSize(100, 5);
   cancelPanel.add(cancelButton);
   emptyLabel1 = new JLabel("");
   emptyLabel2 = new JLabel("");
   emptyLabel3 = new JLabel("");
   emptyLabel4 = new JLabel("");
    emptyPanel1 = new JPanel();
    emptyPanel2 = new JPanel();
    emptyPanel3 = new JPanel();
    emptyPanel4= new JPanel();
        readPanel = new JPanel();
        sendPanel = new JPanel();
        messagePanel = new JPanel();
        cypherPanel = new JPanel();
        plainPanel = new JPanel()
         boardPanel1 = new JPanel();
         boardPanel1.setLayout(new FlowLayout()); 
         boardPanel2 = new JPanel();
         boardPanel2.setLayout(new FlowLayout());
           messageArea = new JTextArea(5,60);
           messageArea.setLineWrap(true);
           messageArea.setWrapStyleWord(true);
           messageArea.setFont(new Font("Monospaced",  Font.PLAIN, 12));
           messageArea.setEditable(true);
          cypherArea = new JTextArea(20,20);
          cypherArea.setLineWrap(true);
          cypherArea.setWrapStyleWord(true);
          cypherArea.setFont(new Font(" Serif",  Font.PLAIN, 12));
           cypherArea.setEditable(false);
           plainArea = new JTextArea(20,22);
           plainArea.setLineWrap(true);
           plainArea.setWrapStyleWord(true);
           plainArea.setFont(new Font(" Monospaced",  Font.PLAIN, 12));
           plainArea.setEditable(false);
           messageScroll = new JScrollPane(messageArea,
  ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
  ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEVER);
              cypherScroll = new JScrollPane(cypherArea,
ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
 ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
             plainScroll = new JScrollPane(plainArea, 
 ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
 ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
             readButton = new JButton("read>>>");
             readButton.addActionListener(
                         new  ActionListener()  {
                                        public void actionPerformed(ActionEvent event)
                                         {
                                                      secretKey();
                                          }
                          }
 );
 sendButton = new JButton("send");
sendButton.addActionListener(
              new ActionListner() {
                            public void actionPerformed(ActionEvent event)
                            {
                                              kFrame.setVisible(false);
                                              publish = "";
                                              do {
                                                              p = gen.primeNumber();
                                             }while(!(p > 10)  || !(p < 26) );
                                             do {
                                                           q = gen.primeNumber();

                                              }while( (q <=p)  || !((q-p) >2) );
                                              n  = p*q;
                                              m = (p-1) * (q-1);
                                              e = gen.coprime(m);
                                              d = gen.find_d(m,e);
                                               message = messageArea.getText();
                                               enc = new Encryption(message);
                                                cyphertext = enc.encrypt(e,n);
                                                publish_Keys();
                                                kFrame.setVisible(true);
                                                go = newSending(cyphertext,kFrame,iFrame, 
     cypherArea, current, container);
                                                go.start();
                 kFrame.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
                 container.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
                                             }
                                }
                  );
                 cypherPanel.add(cypherScroll);
                 cypherPanel.setBorder(BorderFactory.createTitledBorder("cyphertext"));
                 readPanel.add(readButton);
                 plainPanel.add(plainScroll);
                plainPanel.setBorder(BorderFactory.createTitledBorder("recovered plaintext")); 
                  messagePanel.add(messageScroll);
                       sendPanel.add(sendButton);
                       emptyPanel1.add(emptyLabel1);
                       emptyPanel2.add(emptyLabel2);
                       emptyPanel3.add(emptyLabel3);
                       emptyPanel4.add(emptyLabel4);
                       boardPanel1.add(cypherPanel);
                       boardPanel1.add(readPanel);
                       boardPanel1.add(plainPanel);