求一个JAVA简易记事本源代码

简单一点,能通过一般考试就OKl了,谢谢

追问：是自己写的不?不是BAIDU之类出来的吧..
因为是教考试,,,要是被发现抄袭就.,,囧了``

答案：我的小型applet,你看好不
 
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class TextEditor extends JApplet
{
 private JMenuItem jmiOpen=new JMenuItem("Open");
 private JMenuItem jmiSave=new JMenuItem("Save");
 private JMenuItem jmiClear=new JMenuItem("Clear");
 private JMenuItem jmiExit=new JMenuItem("Exit");
 private JMenuItem jmiForeground=new JMenuItem("Foreground");
 private JMenuItem jmiBackground=new JMenuItem("Background");
 private JLabel jlblStatus=new JLabel();
 private JTextArea jta=new JTextArea();
 private JFileChooser jFileChooser=new JFileChooser(new File("."));
 
 public TextEditor()
 {
  JMenu jMenu1=new JMenu("File");
  jMenu1.add(jmiOpen);
  jMenu1.add(jmiSave);
  jMenu1.add(jmiClear);
  jMenu1.addSeparator();
  jMenu1.add(jmiExit);
  
  JMenu jMenu2=new JMenu("Edit");
  jMenu2.add(jmiForeground);
  jMenu2.add(jmiBackground);
  
  JMenuBar jMenuBar1=new JMenuBar();
  jMenuBar1.add(jMenu1);
  jMenuBar1.add(jMenu2);
  
  setJMenuBar(jMenuBar1);
  
  jmiOpen.addActionListener(new ActionListener()
  {
   public void actionPerformed(ActionEvent evet)
   {
    open();
   }
  }
  );
  
  jmiSave.addActionListener(new ActionListener()
  {
   public void actionPerformed(ActionEvent evet)
   {
    save();
   }
  }
  );
  
  jmiClear.addActionListener(new ActionListener()
  {
   public void actionPerformed(ActionEvent evet)
   {
    jta.setText(null);
   }
  }
  );
  
  jmiExit.addActionListener(new ActionListener()
  {
   public void actionPerformed(ActionEvent evet)
   {
    System.exit(0);
   }
  }
  );
  
  jmiForeground.addActionListener(new ActionListener()
  {
   public void actionPerformed(ActionEvent evet)
   {
    Color selectedColor=JColorChooser.showDialog(null,"Choose Foreground color",jta.getForeground());
    if(selectedColor!=null)
     jta.setForeground(selectedColor);
   }
  }
  );
  
  jmiBackground.addActionListener(new ActionListener()
  {
   public void actionPerformed(ActionEvent evet)
   {
    Color selectedColor=JColorChooser.showDialog(null,"Choose Background color",jta.getBackground());
    if(selectedColor!=null)
     jta.setBackground(selectedColor);
   }
  }
  );
  
  getContentPane().add(jlblStatus,BorderLayout.SOUTH);
  getContentPane().add(new JScrollPane(jta),BorderLayout.CENTER);
  
  
  
 }
 
 private void open()
 {
  if(jFileChooser.showOpenDialog(this)==JFileChooser.APPROVE_OPTION)
   open(jFileChooser.getSelectedFile());
 }
 private void open(File file)
 {
  try
  {
   BufferedInputStream in=new BufferedInputStream(new FileInputStream(file));
   byte[]b=new byte[in.available()];
   in.read(b,0,b.length);
   jta.append(new String(b,0,b.length));
   in.close();
   jlblStatus.setText(file.getName()+"Opened");
   
  }
  catch(IOException ex)
  {
   jlblStatus.setText("Error opening"+file.getName());
  }
  
 }
 
 private void save()
 {
  if(jFileChooser.showSaveDialog(this)==JFileChooser.APPROVE_OPTION)
   save(jFileChooser.getSelectedFile());
 }
 
 private void save(File file)
 {
  try
  {
   BufferedOutputStream out=new BufferedOutputStream(new FileOutputStream(file));
   byte[]b=jta.getText().getBytes();
   out.write(b,0,b.length);
   out.close();
  }
  catch(IOException ex)
  {
   jlblStatus.setText("Error saving"+file.getName());
  }
 }
 
 
 
 
 
}
 
 
我给你
 

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