e1301.java

java小程序

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class E1301 extends JFrame implements ActionListener
{
private int count=0;
private Container c;
JTextArea ta;
JButton button;
public E1301()
{
super("E1301.java:JButton及JTextArea测试");
button=new JButton("Click Me");
button.addActionListener(this);
ta=new JTextArea("",5,40);
c=getContentPane();
c.setLayout(new FlowLayout(FlowLayout.CENTER));
c.add(button);
c.add(ta);
setSize(500,200);
setVisible(true);
}
public void actionPerformed(ActionEvent e)
{
count++;
ta.insert("事件="+e.paramString()+"\n"+"计数="+count+"\n",0);
}
public static void main(String args[])
{
E1301 app=new E1301();
app.addWindowListener(new MyWindowListener());
}
}