Java进程并发演示模型

进程并发演示模型

一实验截图

二代码

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class CZFrame extends JFrame implements ActionListener

{

CZThread thread1,thread2,thread3;

JButton wait1=new JButton("等待"),wait2=new JButton("等待"),wait3=new JButton("等待");

JButton exit=new JButton("退出");

JLabel name=new JLabel("作者：田毛毛");

public CZFrame(int n1,int n2,int n3)

{

setTitle("进程并发演示模型");

setSize(500,550);

setVisible(true);

thread1=new CZThread(n1);

thread2=new CZThread(n2);

thread3=new CZThread(n3);

Container container=getContentPane();

container.setBackground(Color.pink);

container.setLayout(null);

container.add(thread1.panel);

container.add(thread2.panel);

container.add(thread3.panel);

wait1.setBounds(400,150,70,30);

wait2.setBounds(400,250,70,30);

wait3.setBounds(400,350,70,30);

exit.setBounds(200,450,70,30);

container.add(wait1);

container.add(wait2);

container.add(wait3);

container.add(exit);

wait1.addActionListener(this);

wait2.addActionListener(this);

wait3.addActionListener(this);

exit.addActionListener(this);

JLabel label=new JLabel("进程并发演示模型");

Font font=new Font("宋体",Font.BOLD,16);

label.setFont(font);

label.setBounds(175,20,180,50);

container.add(label);

name.setBounds(400,40,100,50);

container.add(name);

thread1.start();

thread2.start();

thread3.start();

}

public void actionPerformed(ActionEvent e)

{

Object s=e.getSource();

if(s==exit)

{

/*thread1.suspend();

thread2.suspend();

thread3.suspend();*/

int i=JOptionPane.showConfirmDialog(null,"确认退出吗?","退出",JOptionPane.YES_NO_OPTION);

if(i==0) System.exit(0);

/*thread1.resume();

thread2.resume();

thread3.resume();*/

}

else if(s==wait1)

{

try

{

if(thread1.st==0)

{

thread1.suspend();

thread1.st=1;

wait1.setText("执行");

thread1.num--;

}

else

{

thread1.resume();

thread1.st=0;

wait1.setText("等待");

thread1.num++;

}

}

catch(Exception e1)

{}

}

else if(s==wait2)

{

try

{

if(thread2.st==0)

{

thread2.suspend();

thread2.st=1;

wait2.setText("执行");

thread1.num--;

}

else

{

thread2.resume();

thread2.st=0;

wait2.setText("等待");

thread1.num++;

}

}

catch(Exception e1)

{}

}

else

{

try

{

if(thread3.st==0)

{

thread3.suspend();

thread3.st=1;

wait3.setText("执行");

thread1.num--;

}

else

{

thread3.resume();

thread3.st=0;

wait3.setText("等待");

thread1.num++;

}

}

catch(Exception e1)

{}

}

}

public static void main(String args[])

{

int n1=0,n2=1,n3=2;

CZFrame frame=new CZFrame(n1,n2,n3);

frame.setDefaultCloseOperation(EXIT_ON_CLOSE);

frame.show();

}

}

class CZThread extends Thread