记事本.txt

java实现的一个简单记事本``只实现了打开和新建的功能

import java.awt.*;
import java.awt.event.*;

class Mytext extends Frame implements ActionListener{
TextArea text;
String str="";
public Mytext(String s)
{super(s);
addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
dispose();
System.exit(0);
}

});

Menu mn=new Menu("文件");
MenuItem miOpen=new MenuItem("打开",new MenuShortcut(KeyEvent.VK_O));
MenuItem miCreate=new MenuItem("新建",new MenuShortcut(KeyEvent.VK_C));
mn.add(miOpen);
mn.add(miCreate);
miOpen.addActionListener(this);
miCreate.addActionListener(this);
MenuBar mb=new MenuBar();
mb.add(mn);
setMenuBar(mb);
text=new TextArea();
add("Center",text);
setSize(500,600);
setVisible(true);

}

public void actionPerformed(ActionEvent e)
{ String strCmd=e.getActionCommand();
try{
if(strCmd.equals("打开"))
openText();

if(strCmd.equals("新建"))
text.setText("");
}
catch(IOException e){}

}

}

public class TestMytext{
public static void main(String args[])
{Mytext m=new Mytext("记事本");}
}