Thursday, March 15, 2012

Project IO


ENSKRIPSI


Buatlah file ProjectIO.java





package project_io;


/**
 *
 * @author nadya
 */


import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.Timer;
import javax.swing.Icon;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.filechooser.*;
import javax.swing.*;
import java.io.*;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import javax.swing.filechooser.FileFilter;


public class ProjectIO extends javax.swing.JFrame {
    JFileChooser fc;
    File file;
    boolean Nfile;
    final String[] EXT = { ".csv" };
    final String[] EXT2 = { ".txt", ".java" };
    private String text;
    
    public ProjectIO() {
        initComponents();
        editor.setVisible(false);
        editor2.setFocusable(false);
        editor2.setEditable(false);
        this.setTitle("Untitled - NOTES");
        fc = new JFileChooser();
        fc.addChoosableFileFilter(new jenisFile(EXT));
        fc.addChoosableFileFilter(new jenisFile(EXT2));
        fc.setAcceptAllFileFilterUsed(false);
        Nfile = true;
    }


    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {


        jPanel1 = new javax.swing.JPanel();
        jComboBox1 = new javax.swing.JComboBox();
        jPanel3 = new javax.swing.JPanel();
        btnNew = new javax.swing.JButton();
        btnOpen = new javax.swing.JButton();
        btnSave = new javax.swing.JButton();
        btnSaveAs = new javax.swing.JButton();
        jLabel1 = new javax.swing.JLabel();
        txtnamafield = new javax.swing.JTextField();
        jPanel4 = new javax.swing.JPanel();
        txtPass = new javax.swing.JTextField();
        btnClear = new javax.swing.JButton();
        jScrollPane1 = new javax.swing.JScrollPane();
        editor = new javax.swing.JEditorPane();
        jPanel2 = new javax.swing.JPanel();
        jPanel5 = new javax.swing.JPanel();
        txtCPass = new javax.swing.JTextField();
        btnDes = new javax.swing.JButton();
        jPanel8 = new javax.swing.JPanel();
        btnCrypt = new javax.swing.JButton();
        btnMD5 = new javax.swing.JButton();
        btnRC = new javax.swing.JButton();
        btnCC = new javax.swing.JButton();
        spnGeser = new javax.swing.JSpinner();
        btnSave2 = new javax.swing.JButton();
        jScrollPane2 = new javax.swing.JScrollPane();
        editor2 = new javax.swing.JEditorPane();
        btnExit = new javax.swing.JButton();


        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);


        jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(153, 0, 153), 2), "First Text", javax.swing.border.TitledBorder.CENTER, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Bernard MT Condensed", 0, 14), new java.awt.Color(255, 153, 255))); // NOI18N
        jPanel1.setForeground(new java.awt.Color(255, 153, 204));


        jComboBox1.setFont(new java.awt.Font("Book Antiqua", 0, 12));
        jComboBox1.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Menu", "New", "Open", "Save", "Save As" }));
        jComboBox1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jComboBox1ActionPerformed(evt);
            }
        });


        jPanel3.setBorder(javax.swing.BorderFactory.createTitledBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(153, 0, 153)), "Menu", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Bernard MT Condensed", 0, 14), new java.awt.Color(255, 153, 255))); // NOI18N


        btnNew.setFont(new java.awt.Font("Book Antiqua", 0, 12));
        btnNew.setText("New");
        btnNew.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnNewActionPerformed(evt);
            }
        });


        btnOpen.setFont(new java.awt.Font("Book Antiqua", 0, 12)); // NOI18N
        btnOpen.setText("Open");
        btnOpen.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnOpenActionPerformed(evt);
            }
        });


        btnSave.setFont(new java.awt.Font("Book Antiqua", 0, 12));
        btnSave.setText("Save");
        btnSave.setEnabled(false);
        btnSave.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnSaveActionPerformed(evt);
            }
        });


        btnSaveAs.setFont(new java.awt.Font("Book Antiqua", 0, 12));
        btnSaveAs.setText("Save As");
        btnSaveAs.setEnabled(false);
        btnSaveAs.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnSaveAsActionPerformed(evt);
            }
        });


        javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
        jPanel3.setLayout(jPanel3Layout);
        jPanel3Layout.setHorizontalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel3Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addComponent(btnSave, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(btnNew, javax.swing.GroupLayout.DEFAULT_SIZE, 73, Short.MAX_VALUE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(btnSaveAs, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(btnOpen, javax.swing.GroupLayout.DEFAULT_SIZE, 75, Short.MAX_VALUE))
                .addContainerGap())
        );
        jPanel3Layout.setVerticalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel3Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(btnNew)
                    .addComponent(btnOpen))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(btnSave)
                    .addComponent(btnSaveAs))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );


        jLabel1.setFont(new java.awt.Font("Book Antiqua", 0, 12));
        jLabel1.setText("Nama File");


        jPanel4.setBorder(javax.swing.BorderFactory.createTitledBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(153, 0, 153)), "Password", javax.swing.border.TitledBorder.CENTER, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Bernard MT Condensed", 0, 14), new java.awt.Color(255, 153, 255))); // NOI18N


        javax.swing.GroupLayout jPanel4Layout = new javax.swing.GroupLayout(jPanel4);
        jPanel4.setLayout(jPanel4Layout);
        jPanel4Layout.setHorizontalGroup(
            jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel4Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(txtPass, javax.swing.GroupLayout.DEFAULT_SIZE, 197, Short.MAX_VALUE)
                .addContainerGap())
        );
        jPanel4Layout.setVerticalGroup(
            jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel4Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(txtPass, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );


        btnClear.setFont(new java.awt.Font("Book Antiqua", 0, 12));
        btnClear.setText("Clear Text");
        btnClear.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
      &nbrp;         btnClearActionPerformed(evt);
            }
        });


        editor.setEnabled(false);
        jScrollPane1.setViewportView(editor);


        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(26, 26, 26)
                        .addComponent(jPanel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(32, 32, 32)
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(txtnamafield, javax.swing.GroupLayout.DEFAULT_SIZE, 127, Short.MAX_VALUE)
                            .addComponent(jLabel1)))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addComponent(jPanel4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(65, 65, 65)
                        .addComponent(btnClear))
                    .addComponent(jScrollPane1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 442, Short.MAX_VALUE))
                .addContainerGap())
        );
        jPanel1L`yout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGap(20, 20, 20)
                        .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(jPanel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGap(20, 20, 20)
                        .addComponent(jLabel1)
                        .addGap(9, 9, 9)
                        .addComponent(txtnamafield, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addGap(18, 18, 18)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 165, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGap(43, 43, 43)
                        .addComponent(btnClear))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGap(28, 28, 28)
                        .addComponent(jPanel4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap(35, Short.MAX_VALUE))
        );


        jPanel2.setBorder(javax.swing.BorderFactory.createTitledBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(153, 0, 153), 2), "Enkripsi Text", javax.swing.border.TitledBorder.CENTER, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Bernard MT Condensed", 0, 14), new java.awt.Color(255, 153, 255))); // NOI18N
        jPanel2.setForeground(new java.awt.Color(255, 153, 204));


        jPanel5.setBorder(javax.swing.BorderFactory.createTitledBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(153, 0, 153)), "Password", javax.swing.border.TitledBorder.CENTER, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Bernard MT Condensed", 0, 14), new java.awt.Color(255, 153, 255))); // NOI18N


        javax.swing.GroupLayout jPanel5Layout = new javax.swing.GroupLayout(jPanel5);
        jPanel5.setLayout(jPanel5Layout);
        jPanel5Layout.setHorizontalGroup(
            jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel5Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(txtCPass, javax.swing.GroupLayout.DEFAULT_SIZE, 197, Short.MAX_VALUE)
                .addContainerGap())
        );
        jPanel5Layout.setVerticalGroup(
            jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel5Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(txtCPass, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );


        btnDes.setFont(new java.awt.Font("Book Antiqua", 0, 12));
        btnDes.setText("Description");
        btnDes.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnDesActionPerformed(evt);
            }
        });


        jPanel8.setBorder(javax.swing.BorderFactory.createTitledBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Bolor(153, 0, 153)), "Enkripsi", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Bernard MT Condensed", 0, 14), new java.awt.Color(255, 153, 255))); // NOI18N


        btnCrypt.setFont(new java.awt.Font("Book Antiqua", 0, 12));
        btnCrypt.setText("Cryptography");
        btnCrypt.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnCryptActionPerformed(evt);
            }
        });


        btnMD5.setFont(new java.awt.Font("Book Antiqua", 0, 12));
        btnMD5.setText("MD5");
        btnMD5.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnMD5ActionPerformed(evt);
            }
        });


        btnRC.setFont(new java.awt.Font("Book Antiqua", 0, 12));
        btnRC.setText("Random Char");
        btnRC.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnRCActionPerformed(evt);
            }
        });


        btnCC.setFont(new java.awt.Font("Book Antiqua", 0, 12));
        btnCC.setText("Caesar Chiper");
        btnCC.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnCCActionPerformed(evt);
            }
        });


        javax.swing.GroupLayout jPanel8Layout = new javax.swing.GroupLayout(jPanel8);
        jPanel8.setLayout(jPanel8Layout);
        jPanel8Layout.setHorizontalGroup(
            jPanel8Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel8Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel8Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addComponent(btnRC, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(btnCrypt, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(jPanel8Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addComponent(btnMD5, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(btnCC, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        jPanel8Layout.setVerticalGroup(
            jPanel8Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel8Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel8Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(btnCrypt)
                    .addComponent(btnMD5))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(jPanel8Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(btnRC)
                    .addComponent(btnCC))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );


        btnSave2.setFont(new java.awt.Font("Book Antiqua", 0, 12));
        btnSave2.setText("Save");
        btnSave2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnSave2ActionPerformed(evt);
            }
        });


        editor2.setEnabled(false);
        jScrollPane2.setViewportView(editor2);


        javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel2Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel2Layout.createSequentialGroup()
                        .addComponent(jPanel5, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(55, 55, 55)
                        .addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addComponent(btnSave2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(btnDes, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
                    .addGroup(jPanel2Layout.createSequentialGroup()
                        .addComponent(spnGeser, javax.swing.GroupLayout.PREFERRED_SIZE, 75, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(18, 18, 18)
                        .addComponent(jPanel8, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addComponent(jScrollPane2, javax.swing.GroupLayout.DEFAULT_SIZE, 442, Short.MAX_VALUE))
                .addContainerGap())
        );
        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel2Layout.createSequentialGroup()
                .addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel2Layout.createSequentialGroup()
                        .addGap(19, 19, 19)
                        .addComponent(spnGeser, javax.swing.GroupLayout.PREFERRED_SIZE, 32, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(jPanel2Layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(jPanel8, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addGap(18, 18, 18)
                .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 165, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 28, Short.MAX_VALUE)
                .addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel2Layout.createSequentialGroup()
                        .addComponent(jPanel5, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(35, 35, 35))
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel2Layout.createSequentialGroup()
                        .addComponent(btnDes)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addComponent(btnSave2)
                        .addGap(37, 37, 37))))
        );


        btnExit.setFont(new java.awt.Font("Book Antiqua", 0, 12));
        btnExit.setText("Exit");
        btnExit.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnExitActionPerformed(evt);
            }
        });


        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(28, 28, 28)
                .addComponent(btnExit, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addGap(18, 18, 18)
                .addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                        .addContainerGap())
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jPanel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                        .addContainerGap())
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                        .addComponent(btnExit)
                        .addGap(219, 219, 219))))
        );


        pack();
    }// </editor-fold>                        


    private void btnExitActionPerformed(java.awt.event.ActionEvent evt) {                                        
        System.exit(0); 
    }                                       


    private void btnNewActionPerformed(java.awt.event.ActionEvent evt) {                                       
        editor.setText("");
        btnSave.setEnabled(true);
        btnSaveAs.setEnabled(true);
        editor.requestFocus();
        this.setTitle("Untitled - NOTES");
        Nfile = true;
        editor.setEnabled(true);
        editor.setVisible(true);
    }                                      


    private void btnOpenActionPerformed(java.awt.event.ActionEvent evt) {                                        
        int hasil = fc.showOpenDialog(this);
        editor.setEnabled(true);
        editor.setVisible(true);
        btnSave.setEnabled(true);
        btnSaveAs.setEnabled(true);
        if (hasil == JFileChooser.APPROVE_OPTION) {
        file = fc.getSelectedFile();
        try {
        editor.read(new FileInputStream(file), null);
        } catch (IOException e) {
        msg("Gagal Buka File : "+file.getName() );
        return ;
        }
        }
        this.setTitle(file.getName()+" - NOTES" );
        Nfile = false;
        text=file.getPath().toString();
        txtnamafield.setText(text);
    }                                       


    private void btnSaveActionPerformed(java.awt.event.ActionEvent evt) {                                        
        if (Nfile)
        btnSaveAs.doClick();
        else
        SimpanFile();
    }                                       


    private void btnSaveAsActionPerformed(java.awt.event.ActionEvent evt) {                                          
        if (fc.showSaveDialog(this) == JFileChooser.APPROVE_OPTION){
            file = fc.getSelectedFile();
            if (!file.exists() || okToReplace())
            SimpanFile();
        }
    }                                         


    private void btnClearActionPerformed(java.awt.event.ActionEvent evt) {                                         
        editor.setText("");
    }                                        


    private void btnSave2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        if (fc.showSaveDialog(this) == JFileChooser.APPROVE_OPTION){
        file = fc.getSelectedFile();
        if (!file.exists() || okToReplace())
        SimpanFile2();
        }
    }                                        


    private void btnDesActionPerformed(java.awt.event.ActionEvent evt) {                                       
            if (txtCPass.getText().equals(txtPass.getText())){
                JOptionPane.showMessageDialog(null, "Descryption Success");
                editor2.setText(editor.getText());
            }
            else
        &nbsp:   JOptionPane.showMessageDialog(null, "What Are You Doing");
    }                                      


    private void btnCryptActionPerformed(java.awt.event.ActionEvent evt) {                                         
        encrypt();
    }                                        


    private void btnRCActionPerformed(java.awt.event.ActionEvent evt) {                                      
        String randomKey = "";
        double randomNumber;
        for (int i=0; i<editor.getText().length(); i++) {
             randomNumber = Math.random() * 35 + (int)spnGeser.getValue();
             randomKey = randomKey + (char)randomNumber;
        }
        editor2.setText(randomKey);
    }                                     


    private void btnMD5ActionPerformed(java.awt.event.ActionEvent evt) {                                       
        EncryptMD5 md5=new EncryptMD5();
        try {
            editor2.setText(md5.MD5(editor.getText()));
        } catch (NoSuchAlgorithmException ex) {
            Logger.getLogger(ProjectIO.class.getName()).log(Level.SEVERE, null, ex);
        } catch (UnsupportedEncodingException ex) {
            Logger.getLogger(ProjectIO.class.getName()).log(Level.SEVERE, null, ex);
        }
    }                                      


    private void btnCCActionPerformed(java.awt.event.ActionEvent evt) {                                      
    getData=editor.getText();
    getData=getData.trim();
    len=getData.length();
    con=getData.toCharArray();
    j=len+1;
    getData="";
    try {
    for( i1=0;i1<j;i1++){    
          a=con[i1];
          k=(int)a;
          k+=(int)spnGeser.getValue();
          a=(char)k;
       getData=getData+(a.toString());
    } }
    catch(Exception e){


    } 
    System.out.println(getData);
    System.out.println(len);
    editor2.setText(getData);
    }                                     


    private void jComboBox1ActionPerformed(java.awt.event.ActionEvent evt) {                                           
        if(jComboBox1.getSelectedItem().equals("New")){
            editor.setText("");
            btnSave.setEnabled(true);
            btnSaveAs.setEnabled(true);
            editor.requestFocus();
            this.setTitle("Untitled - NOTES");
            Nfile = true;
            editor.setEnabled(true);
            editor.setVisible(true);
        }
        if(jComboBox1.getSelectedItem().equals("Open")){
            int hasil = fc.showOpenDialog(this);
            editor.setEnabled(true);
            editor.setVisible(true);
            btnSave.setEnabled(true);
            btnSaveAs.setEnabled(true);
            if (hasil == JFileChooser.APPROVE_OPTION) {
            file = fc.getSelectedFile();
            try {
            editor.read(new FileInputStream(file), null);
            } catch (IOException e) {
            msg("Gagal Buka File : "+file.getName() );
            return ;
            }
            }
            this.setTitle(file.getName()+" - NOTES" );
            Nfile = false;
        }
        if(jComboBox1.getSelectedItem().equals("Save")){
            if (Nfile)
            btnSaveAs.doClick();
            else
            SimpanFile();
        }
        if(jComboBox1.getSelectedItem().equals("Save As")){
            if (fc.showSaveDialog(this) == JFileChooser.APPROVE_OPTION){
            file = fc.getSelectedFile();
            if (!file.exists() || okToReplace())
            SimpanFile();
            }
        }
    }                                          
   private void msg(String pesan) {
    JOptionPane.showMessageDialog(this,pesan,"Informasi",
    JOptionPane.INFORMATION_MESSAGE);
    }
    
    private boolean okToReplace() {
    return (JOptionPane.showConfirmDialog(this,
    "File "+file.getName()+" Sudah Ada\n"+
    "Akan Ditimpa ?",
    "Peringatan",JOptionPane.YES_NO_OPTION)==0) ;
    }
    
    private void SimpanFile2() {
    PrintWriter pw = null;
    try {
    pw = new PrintWriter(new BufferedWriter(new FileWriter(file)));
    } catch (IOException e) {
    msg("Gagal Simpan File : '" + file.getName());
    return;
    }
    pw.print(editor2.getText());
    pw.close();
    this.setTitle(file.getName()+" - NOTES" );
    Nfile = false;
    }
    
    
    private void SimpanFile() {
    PrintWriter pw = null;
    try {
    pw = new PrintWriter(new BufferedWriter(new FileWriter(file)));
    } catch (IOException e) {
    msg("Gagal Simpan File : '" + file.getName());
    return;
    }
    pw.print(editor.getText());
    pw.close();
    this.setTitle(file.getName()+" - NOTES" );
    Nfile = false;
    }
    
    String getData,cs,main="";
    char con[];
    int len,hc,j=0;
    int i1=0;
    char bb[];
    int k=0;
    Character a;
   
    
    public void encrypt() {
    getData=editor.getText();
    getData=getData.trim();
    len=getData.length();
    con=getData.toCharArray();
    j=len-1;
    getData="";
    try {
    for( i1=j;i1>=0;i1--){    
          a=con[i1];
          k=(int)a;
          k+=(int)spnGeser.getValue();
          a=(char)k;
       getData=getData+(a.toString());
    } }
    catch(Exception e){


    } 
    System.out.println(getData);
    System.out.println(len);
    editor2.setText(getData);
    }
    
    
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {


            public void run() {
                new ProjectIO().setVisible(true);
            }
        });
    }
    
    class EncryptMD5 {


    private String convertToHex(byte[] data) { 
        StringBuffer buf = new StringBuffer();
        for (int i = 0; i < data.length; i++) { 
            int halfbyte = (data[i] >>> 4) & 0x0F;
            int two_halfs = 0;
            do { 
                if ((0 <= halfbyte) && (halfbyte <= 9)) 
                    buf.append((char) ('0' + halfbyte));
                else 
                    buf.append((char) ('a' + (halfbyte - (int)spnGeser.getValue())));
                halfbyte = data[i] & 0x0F;
            } while(two_halfs++ < 1);
        } 
        return buf.toString();
    } 

    public  String MD5(String text) 
    throws NoSuchAlgorithmException, UnsupportedEncodingException  { 
        MessageDigest md;
        md = MessageDigest.getInstance("MD5");
        byte[] md5hash = new byte[32];
        md.update(text.getBytes("iso-8859-1"), 0, text.length());
        md5hash = md.digest();
        return convertToHex(md5hash);
    }
    
    
    
    }
    // Variables declaration - do not modify                     
    private javax.swing.JButton btnCC;
    private javax.swing.JButton btnClear;
    private javax.swing.JButton btnCrypt;
    private javax.swing.JButton btnDes;
    private javax.swing.JButton btnExit;
    private javax.swing.JButton btnMD5;
    private javax.swing.JButton btnNew;
    private javax.swing.JButton btnOpen;
    private javax.swing.JButton btnRC;
    private javax.swing.JButton btnSave;
    private javax.swing.JButton btnSave2;
    private javax.swing.JButton btnSaveAs;
    private javax.swing.JEditorPane editor;
    private javax.swing.JEditorPane editor2;
    private javax.swing.JComboBox jComboBox1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPanel jPanel3;
    private javax.swing.JPanel jPanel4;
    private javax.swing.JPanel jPanel5;
    private javax.swing.JPanel jPanel8;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane2;
    private javax.swing.JSpinner spnGeser;
    private javax.swing.JTextField txtCPass;
    private javax.swing.JTextField txtPass;
    private javax.swing.JTextField txtnamafield;
    // End of variables declaration                   
}


Kemudian buat file jenisFile.java

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