自制悲观锁

i）自制悲观锁：

例 2.2.1.1

package com;

public class Ticket_Pess_MarkToWin {

private int number=4;

private int lock=0;

public synchronized int getLock()

{

System.out.println("最后还剩"+number);

}else{

System.out.println("不够了，买几张失败");

}

}

}

package com;

class MulThreMarkToWin extends Thread {

Ticket_Pess_MarkToWin ticPes_MarkToWin;

public MulThreMarkToWin(Ticket_Pess_MarkToWin ticPes_MarkToWin) {

System.out.println("没拿到锁，没干成");

}

}

}

class MulThreMarkToWinBatch extends Thread {

Ticket_Pess_MarkToWin ticPes_MarkToWin;

public MulThreMarkToWinBatch(Ticket_Pess_MarkToWin ticPes_MarkToWin) {

this.ticPes_MarkToWin=ticPes_MarkToWin;

}

public void run() {

}

}

public class TestConcurBuy_MarkToWin {

public static void main(String[] args) {

Ticket_Pess_MarkToWin ticPes_MarkToWin=new Ticket_Pess_MarkToWin();

Thread t1 = new MulThreMarkToWin(ticPes_MarkToWin);

Thread t2 = new MulThreMarkToWinBatch(ticPes_MarkToWin);

Thread t3 = new MulThreMarkToWin(ticPes_MarkToWin);

t1.start();

t2.start();

t3.start();

}

}

更多请看：https://blog.csdn.net/qq_44638460/article/details/104135510