Can any one solve this program me. i dont understand it. Kindly help me +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ package com.test.entities; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JButton; import javax.swing.JTextField; import javax.swing.JLabel; import java.awt.BorderLayout; import java.awt.event.*; import javax.swing.BoxLayout; import javax.swing.JOptionPane; /** A class to implement the Cryptography GUI. @author Callum Steele @author Miranda Aperghis @version Project CS56, S13, 06/05/2013 */ public class AffineCipher { ShiftCipher shiftCipher = null; AffineCipher affineCipher = null; VigenereCipher vigenereCipher = null; String plainText = null; String cipherText = null; int keyA, keyB; String key; JFrame frame; JButton shift, vigenere, affine, mode; JPanel buttonPanel, cipherButtonPanel, modeButtonPanel, textFieldPanel, inputTextPanel, inputKeyTextPanel; JTextField input, keyInput; JLabel output, inputText, inputKeyText; boolean encryptMode = true; /** Calls the function to create the GUI. @param args Default arguments sent to main. */ public static void main (String[] args) { AffineCipher cryptoGUI = new AffineCipher(); cryptoGUI.go(); } /** Function that populates and creates the GUI. */ public void go () { // initialise Cipher objects shiftCipher = new ShiftCipher(); affineCipher = new AffineCipher(); vigenereCipher = new VigenereCipher(); // setup overall frame options frame = new JFrame(); frame.setSize(400,180); frame.setTitle(Cryptography Interface); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setResizable(false); // create panel for text fields textFieldPanel = new JPanel(); textFieldPanel.setLayout(new BoxLayout(textFieldPanel, BoxLayout.Y_AXIS)); // create panel containing label and textfield for plaintext input inputTextPanel = new JPanel(); inputTextPanel.setLayout(new BoxLayout(inputTextPanel, BoxLayout.X_AXIS)); inputText = new JLabel(); inputText.setText(Plaintext: ); input = new JTextField(); inputTextPanel.add(inputText); inputTextPanel.add(input); // create panel containing label and textfield for key input inputKeyTextPanel = new JPanel(); inputKeyTextPanel.setLayout(new BoxLayout(inputKeyTextPanel, BoxLayout.X_AXIS)); inputKeyText = new JLabel(); inputKeyText.setText(Key(s): ); keyInput = new JTextField(); inputKeyTextPanel.add(inputKeyText); inputKeyTextPanel.add(keyInput); // add panels to overall text field panel textFieldPanel.add(inputTextPanel); textFieldPanel.add(inputKeyTextPanel); // create panel for cipher buttons cipherButtonPanel = new JPanel(); cipherButtonPanel.setLayout(new BoxLayout(cipherButtonPanel, BoxLayout.X_AXIS)); // create cipher buttons and add listeners shift = new JButton(Shift Cipher); shift.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { // get text from plaintext text field plainText = input.getText(); // get key from key text field and set it as key in cipher object try { keyA = Integer.parseInt(keyInput.getText()); shiftCipher.setCipherKey(keyA); // checks if encrypting or decrypting if (encryptMode) cipherText = shiftCipher.encrypt(plainText); else cipherText = shiftCipher.decrypt(plainText); // puts result in the output label output.setText(cipherText); } catch (Exception ex) { // create popup messagePopUp(Incorrect input for Shift Cipher. Refer to README for correct input format., Shift Cipher Input Error); } } }); affine = new JButton(Affine Cipher); affine.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { // get text from plaintext text field plainText = input.getText(); // gets keys from key text field and sets as the keys in cipher object try { key = keyInput.getText(); keyA = Integer.parseInt(key.substring(0, key.indexOf( ))); keyB = Integer.parseInt(key.substring(key.indexOf( ) + 1)); affineCipher.setKeyA(keyA); affineCipher.setKeyB(keyB); // checks if encrypting or decrypting if (encryptMode) cipherText = affineCipher.encrypt(plainText); else cipherText = affineCipher.decrypt(plainText); // puts result in the output label output.setText(cipherText); } catch (Exception ex) { // create popup messagePopUp(Incorrect input for Affine Cipher. Refer to README for correct input format., Affine Cipher Input Error); } } }); vigenere = new JButton(Vigenere Cipher); vigenere.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { // get text from plaintext text field plainText = input.getText(); // gets key from key text field and sets as the key in cipher object try { key = keyInput.getText(); vigenereCipher.setCipherKey(key); // checks if encrypting or decrypting if (encryptMode) cipherText = vigenereCipher.encrypt(plainText); else cipherText = vigenereCipher.decrypt(plainText); // puts result in the output label output.setText(cipherText); } catch (Exception ex) { // create popup messagePopUp(Incorrect input for Vigenere Cipher. Refer to README for correct input format., Vigenere Cipher Input Error); } } }); // adds cipher buttons to overall cipher button panel cipherButtonPanel.add(shift); cipherButtonPanel.add(affine); cipherButtonPanel.add(vigenere); // creates panel for mode button modeButtonPanel = new JPanel(); // create mode button and adds listener mode = new JButton(Switch to decryption); mode.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { // checks if encryption or decryption mode if (encryptMode) { encryptMode = false; mode.setText(Switch to encryption); } else { encryptMode = true; mode.setText(Switch to decryption); } } }); // adds mode button to mode panel modeButtonPanel.add(mode); // creates overall button panel and adds cipher/mode button panels buttonPanel = new JPanel(); buttonPanel.setLayout(new BoxLayout(buttonPanel, BoxLayout.Y_AXIS)); buttonPanel.add(cipherButtonPanel); buttonPanel.add(modeButtonPanel); // creates output label output = new JLabel(); // adds components to overall frame frame.getContentPane().add(BorderLayout.CENTER, buttonPanel); frame.getContentPane().add(BorderLayout.NORTH, textFieldPanel); frame.getContentPane().add(BorderLayout.SOUTH, output); // sets frame visible frame.setVisible(true); } public void messagePopUp(String message, String title) { JOptionPane.showMessageDialog(null, message, title, JOptionPane.INFORMATION_MESSAGE); } }
Posted on: Sun, 30 Nov 2014 05:40:42 +0000
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