java，

java，

package mypackage;

import java.awt.Color;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;

public class myjava {
 public static void main(String[] args){
//  System.out.print("my first program!");
  
  JFrame windows=new JFrame("test_program");
  windows.setResizable(false);//设置取消最大化窗体
  windows.setLayout(null); //设置窗体布局为空布局
  JPanel panel=new JPanel();
  panel.setBackground(Color.white);
//  windows.getContentPane().add(panel);    
  windows. setContentPane(panel);//如果使用此方法添加面板，面板将布满整个窗口
  JButton btl_ok=new JButton("ok");
  JButton btl_cancel=new JButton("cancel");
  final JButton btl_win=new JButton("TZ");
  btl_ok.setBounds(0,0,100,30);
  btl_cancel.setBounds(105,0,100,30);
  btl_win.setBounds(210,0,100,30);
  windows.add(btl_ok);
  windows.add(btl_cancel);
  windows.add(btl_win);
  windows.setLocation(500, 400);
  windows.setSize(500,400);
  windows.setVisible(true);
  

  btl_ok.addActionListener(new ActionListener() {
   
   @Override
   public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
    System.out.println("i see!");
    JOptionPane.showMessageDialog(null, "message");
   }
  });
  
  
  btl_cancel.addActionListener(new ActionListener() {
   
   @Override
   public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
    System.exit(0);
   }
  });
  
  btl_win.addActionListener(new ActionListener() {
   
   int i=0;
   @Override
   public void actionPerformed(ActionEvent arg0) {
    // TODO Auto-generated method stub
    if ( i==0 )
    {
       JFrame winn=new JFrame("test_program");
       winn.setVisible(true);
       winn.setLocation(600, 500);
       winn.setSize(250,200);
       winn.setVisible(true);
//       btl_win.setEnabled(false);
       i=1;
    }
    else
    {
       i=0;
    }
    
   }
  });

 }

 private static Container getContentPane() {
  // TODO Auto-generated method stub
  return null;
 }
}