wenben.java

其实这个问题很简单

/* 
* WriteBoard.java 
* 
* Created on 2006年12月19日, 下午7:26 
*/ 

/** 
* 
* @author LecH.giF 
*/ 
import java.awt.datatransfer.*; 
import java.awt.event.*; 
import java.awt.*; 
import java.io.*; 
import java.awt.FileDialog; 
public class WriteBoard extends java.awt.Frame { 
Clipboard clipboard =null; 
FileDialog fc = new FileDialog(this); 

/** Creates new form WriteBoard */ 
public WriteBoard() { 
clipboard = getToolkit().getSystemClipboard(); 
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. 
*/ 
// <editor-fold defaultstate="collapsed" desc=" Generated Code "> 
private void initComponents() { 
textArea1 = new java.awt.TextArea(); 
menuBar1 = new java.awt.MenuBar(); 
menu1 = new java.awt.Menu(); 
menuItem1 = new java.awt.MenuItem(); 
menuItem2 = new java.awt.MenuItem(); 
menuItem3 = new java.awt.MenuItem(); 
menuItem4 = new java.awt.MenuItem(); 
menuItem5 = new java.awt.MenuItem(); 
menu2 = new java.awt.Menu(); 
menuItem6 = new java.awt.MenuItem(); 
menuItem7 = new java.awt.MenuItem(); 
menuItem8 = new java.awt.MenuItem(); 

setTitle("WriteBoard"); 
addWindowListener(new java.awt.event.WindowAdapter() { 
public void windowClosing(java.awt.event.WindowEvent evt) { 
exitForm(evt); 
} 
}); 

add(textArea1, java.awt.BorderLayout.CENTER); 

menu1.setLabel("Menu"); 
menuItem1.setLabel("\u65b0\u5efa"); 
menuItem1.addActionListener(new java.awt.event.ActionListener() { 
public void actionPerformed(java.awt.event.ActionEvent evt) { 
newText(evt); 
} 
}); 

menu1.add(menuItem1); 

menuItem2.setLabel("\u6253\u5f00"); 
menuItem2.addActionListener(new java.awt.event.ActionListener() { 
public void actionPerformed(java.awt.event.ActionEvent evt) { 
open(evt); 
} 
}); 

menu1.add(menuItem2); 

menuItem3.setLabel("\u4fdd\u5b58"); 
menuItem3.addActionListener(new java.awt.event.ActionListener() { 
public void actionPerformed(java.awt.event.ActionEvent evt) { 
menuItem3ActionPerformed(evt); 
} 
}); 

menu1.add(menuItem3); 

menuItem4.setLabel("\u53e6\u5b58\u4e3a"); 
menuItem4.addActionListener(new java.awt.event.ActionListener() { 
public void actionPerformed(java.awt.event.ActionEvent evt) { 
menuItem4ActionPerformed(evt); 
} 
}); 

menu1.add(menuItem4); 

menuItem5.setLabel("\u9000\u51fa"); 
menuItem5.addActionListener(new java.awt.event.ActionListener() { 
public void actionPerformed(java.awt.event.ActionEvent evt) { 
exit(evt); 
} 
}); 

menu1.add(menuItem5); 

menuBar1.add(menu1); 

menu2.setLabel("\u7f16\u8f91"); 
menuItem6.setLabel("\u526a\u5207"); 
menuItem6.addActionListener(new java.awt.event.ActionListener() { 
public void actionPerformed(java.awt.event.ActionEvent evt) { 
menuItem6ActionPerformed(evt); 
} 
}); 

menu2.add(menuItem6); 

menuItem7.setLabel("\u590d\u5236"); 
menuItem7.addActionListener(new java.awt.event.ActionListener() { 
public void actionPerformed(java.awt.event.ActionEvent evt) { 
menuItem7ActionPerformed(evt); 
} 
}); 

menu2.add(menuItem7); 

menuItem8.setLabel("\u7c98\u8d34"); 
menuItem8.addActionListener(new java.awt.event.ActionListener() { 
public void actionPerformed(java.awt.event.ActionEvent evt) { 
menuItem8ActionPerformed(evt); 
} 
}); 

menu2.add(menuItem8); 

menuBar1.add(menu2); 

setMenuBar(menuBar1); 

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

private void menuItem4ActionPerformed(java.awt.event.ActionEvent evt) { 
fc.show(); 

if(fc.getFile()!=null){ 

File file = new File(fc.getFile()); 



try { 
PrintWriter pw = new PrintWriter(file); 
pw.print(textArea1.getText()); 
pw.flush(); 
pw.close(); 

} catch (FileNotFoundException ex) { 
ex.printStackTrace(); 
} 
} 

else{ 
return; 
} 
} 

private void menuItem3ActionPerformed(java.awt.event.ActionEvent evt) { 
fc.show(); 
if(fc.getFile()!=null){ 

File file = new File(fc.getFile()); 



try { 
PrintWriter pw = new PrintWriter(file); 
pw.print(textArea1.getText()); 
pw.flush(); 
pw.close(); 

} catch (FileNotFoundException ex) { 
ex.printStackTrace(); 
} 
} 

else{ 
return; 
} 
} 

private void menuItem8ActionPerformed(java.awt.event.ActionEvent evt) { 
Transferable contents = clipboard.getContents(this); 
DataFlavor flavor = DataFlavor.stringFlavor; 
if(contents.isDataFlavorSupported(flavor)) 
try{ 
String str; 
str=(String)contents.getTransferData(flavor); 
textArea1.append(str); 
}catch(Exception e){} 
} 

private void menuItem7ActionPerformed(java.awt.event.ActionEvent evt) { 
String temp = this.textArea1.getSelectedText(); 
StringSelection text = new StringSelection(temp); 

clipboard.setContents(text,null); 
} 

private void menuItem6ActionPerformed(java.awt.event.ActionEvent evt) { 
String temp = this.textArea1.getSelectedText(); 
StringSelection text = new StringSelection(temp); 
clipboard.setContents(text,null); 
int start = textArea1.getSelectionStart(); 
int end = textArea1.getSelectionEnd(); 
textArea1.replaceRange("",start,end); 
} 

private void open(java.awt.event.ActionEvent evt) { 
fc.show(); 
if(fc.getFile()!=null){ 

File file = new File(fc.getFile()); 
try { 
FileReader fr = new FileReader(file); 
BufferedReader br = new BufferedReader(fr); 
String s; 
try { 
while((s= br.readLine())!=null){ 
textArea1.append(s+"\n"); 
} 
fr.close(); 
br.close(); 
} catch (IOException ex) { 
ex.printStackTrace(); 
} 

} catch (FileNotFoundException ex) { 
ex.printStackTrace(); 
} 

} 
else{ 
return; 
} 
} 

private void newText(java.awt.event.ActionEvent evt) { 
this.textArea1.setText(""); 
} 

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

/** Exit the Application */ 
private void exitForm(java.awt.event.WindowEvent evt) { 
System.exit(0); 
} 

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


// Variables declaration - do not modify 
private java.awt.Menu menu1; 
private java.awt.Menu menu2; 
private java.awt.MenuBar menuBar1; 
private java.awt.MenuItem menuItem1; 
private java.awt.MenuItem menuItem2; 
private java.awt.MenuItem menuItem3; 
private java.awt.MenuItem menuItem4; 
private java.awt.MenuItem menuItem5; 
private java.awt.MenuItem menuItem6; 
private java.awt.MenuItem menuItem7; 
private java.awt.MenuItem menuItem8; 
private java.awt.TextArea textArea1; 
// End of variables declaration 

}