JavaNotePad

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;

/*
 * Editor.java
 *
 * Created on 09/10/2010, 16:36:20
 */

/**
 *
 * @author Victor Mello Floriano
 */
public class EditorDeTexto extends javax.swing.JFrame {

    /** Creates new form Editor */
    public EditorDeTexto() {
        initComponents();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jScrollPane1 = new javax.swing.JScrollPane();
        jTextArea1 = new javax.swing.JTextArea();
        jMenuBar1 = new javax.swing.JMenuBar();
        jMenu1 = new javax.swing.JMenu();
        jMenuItem1 = new javax.swing.JMenuItem();
        jMenuItem2 = new javax.swing.JMenuItem();
        jMenu2 = new javax.swing.JMenu();
        jMenuItem3 = new javax.swing.JMenuItem();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jTextArea1.setColumns(20);
        jTextArea1.setRows(5);
        jScrollPane1.setViewportView(jTextArea1);

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 400, Short.MAX_VALUE)
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 279, Short.MAX_VALUE)
        );

        jMenu1.setText("Options");

        jMenuItem1.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_S, java.awt.event.InputEvent.CTRL_MASK));
        jMenuItem1.setText("Save");
        jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem1ActionPerformed(evt);
            }
        });
        jMenu1.add(jMenuItem1);

        jMenuItem2.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_O, java.awt.event.InputEvent.CTRL_MASK));
        jMenuItem2.setText("Open");
        jMenuItem2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem2ActionPerformed(evt);
            }
        });
        jMenu1.add(jMenuItem2);

        jMenuBar1.add(jMenu1);

        jMenu2.setText("Help");

        jMenuItem3.setText("Report a bug");
        jMenuItem3.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem3ActionPerformed(evt);
            }
        });
        jMenu2.add(jMenuItem3);

        jMenuBar1.add(jMenu2);

        setJMenuBar(jMenuBar1);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem1ActionPerformed
        try {
            Save();
        } catch (FileNotFoundException ex) {
             JOptionPane.showMessageDialog(null, "FileNotFoundException");
        } catch (IOException ex) {
          JOptionPane.showMessageDialog(null, "IOException"); }
    }//GEN-LAST:event_jMenuItem1ActionPerformed

    private void jMenuItem2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem2ActionPerformed
        try {
            Open();
        } catch (FileNotFoundException ex) {
           JOptionPane.showMessageDialog(null, "FileNotFoundException");
        } catch (IOException ex) {
          JOptionPane.showMessageDialog(null, "IOException");
        }
    }//GEN-LAST:event_jMenuItem2ActionPerformed

    private void jMenuItem3ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem3ActionPerformed
JOptionPane.showMessageDialog(null, "contact [email protected] \n to report a bug");
    }//GEN-LAST:event_jMenuItem3ActionPerformed

    /**
    * @param args the command line arguments
    */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new EditorDeTexto().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JMenu jMenu1;
    private javax.swing.JMenu jMenu2;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JMenuItem jMenuItem1;
    private javax.swing.JMenuItem jMenuItem2;
    private javax.swing.JMenuItem jMenuItem3;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JScrollPane jScrollPane1;
    static javax.swing.JTextArea jTextArea1;
    // End of variables declaration//GEN-END:variables



    public  static  void Save () throws  FileNotFoundException, IOException {
   JFileChooser chooser = new JFileChooser();

    //Abre o file chooser. Ele retorna JFileChooser.APPROVE_OPTION caso o usuário
    //pressione ok.
    if  (chooser.showSaveDialog(null) != JFileChooser.APPROVE_OPTION) {
        return;  //Se não pressionou ok, saímos do método.
    }

    //Usamos o getSelectedFile() para pegar o nome do arquivo selecionado
    PrintWriter pw = new PrintWriter (chooser.getSelectedFile());
    pw.println (jTextArea1.getText());
    pw.flush();
    pw.close();
 }

      public  static  void Open () throws  FileNotFoundException, IOException {
JFileChooser loadEmp = new JFileChooser();//new dialog

    //Abre o file chooser. Ele retorna JFileChooser.APPROVE_OPTION caso o usuário
    //pressione ok.
    if  (loadEmp.showOpenDialog(null) != JFileChooser.APPROVE_OPTION) {
        return;  //Se não pressionou ok, saímos do método.
    }
FileReader fr = new FileReader(loadEmp.getSelectedFile());
BufferedReader br = new BufferedReader(fr);
String linha;
StringBuilder sb = new StringBuilder();
while((linha = br.readLine()) != null) {
sb.append(linha).append("\n");
}
fr.close();
jTextArea1.setText(sb.toString());

    }
}