Example9_17

 package itat;

import java.awt.Button;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.Label;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class Example9_17 {

 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub

  Win win=new Win();
 }

}
class Win extends Frame implements Runnable,ActionListener{

 Thread moveOrStop;
 Button bstart ,bguaqi,bhuifu,bstop;
 Label moveLabel;
 boolean move=false,die=false;
 Win(){
  moveOrStop=new Thread(this);
  bstart=new Button("线程开始");
  bguaqi=new Button("线程挂起");
  bhuifu=new Button("线程恢复");
  bstop=new Button("线程终止");
  
  bstart.addActionListener(this);
  bguaqi.addActionListener(this);
  bhuifu.addActionListener(this);
  bstop.addActionListener(this);
  
  moveLabel=new Label("线程负责运动我");
  moveLabel.setBackground(Color.cyan);
  setLayout(new FlowLayout());
  add(bstart);
  add(bguaqi);
  add(bhuifu);
  add(bstop);
  add(moveLabel);
  setSize(200,300);
  validate();
  setVisible(true);
  addWindowListener(new WindowAdapter(){
   public void windowClosing(WindowEvent e){
    System.exit(0);
   }
  });
 }
 public void run() {
  // TODO Auto-generated method stub
  while(true){
   while(!move){
    guiqi();
    
   }
   int x=moveLabel.getBounds().x;
   int y=moveLabel.getBounds().y;
   y=y+2;
   if(y>=200)y=10;
   moveLabel.setLocation(x,y);
   try {
    moveOrStop.sleep(200);
    
   } catch (InterruptedException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }
   if(die==true){
    return;
   }
  }
 }

 public synchronized void guiqi() {
  // TODO Auto-generated method stub
  try {
   wait();
  } catch (InterruptedException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }
 public void actionPerformed(ActionEvent e) {
  // TODO Auto-generated method stub
  
    if(e.getSource()==bstart){
     moveOrStop.start();
    }else if(e.getSource()==bguaqi){
     move=false;
    }else if(e.getSource()==bhuifu){
     move=true;
     huifu();
    
    }else if(e.getSource()==bstop){
     die=true;
    }
    
   
 }
 public synchronized void huifu() {
  // TODO Auto-generated method stub
  notifyAll();
 }
 
}