线程同步synchronized的学习案例-01

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原创最新推荐文章于 2026-07-06 14:23:36 发布 1.2k 阅读 AI 写同款· GEO 优化 ›

synchronized枷锁实例基于Synchronized加锁的四个demo，主要反映类锁、对象锁、方法锁的使用方法。并测试不同类型锁之间的有效关系。立即下载

public class TT implements Runnable{
	int b=100;
	public synchronized void m1() throws Exception{
		b=1000;
		Thread.sleep(5000);
		System.out.println("b="+b);
	}
	public synchronized void m2() throws Exception{
		Thread.sleep(2500);
		b=2000;
	}
	public void run(){
		try{
			m1();
		}catch(Exception e){
			e.printStackTrace();
		}
	}


	public static void main(String[] args) throws Exception {
	TT tt = new TT();
	Thread t = new Thread(tt);
	t.start();
	tt.m2();
	System.out.println(tt.b);
	}


}

输出结果：

1000
b=1000

package class09;
public class TT implements Runnable{
	int b=100;
	public synchronized void m1() throws Exception{
		b=1000;
		Thread.sleep(5000);
		System.out.println("b="+b);
	}
	public void m2() throws Exception{
		Thread.sleep(2500);
		b=2000;
	}
	public void run(){
		try{
			m1();
		}catch(Exception e){
			e.printStackTrace();
		}
	}

	public static void main(String[] args) throws Exception {
	TT tt = new TT();
	Thread t = new Thread(tt);
	t.start();
	tt.m2();
	System.out.println(tt.b);
	}

}

输出结果：

2000
b=2000

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