algorithms/src/test/java/TestSync2.java at master · verifyCode/algorithms · GitHub

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/**

* @author xjn

* @since 2020-03-02

public class TestSync2 implements Runnable {

int b = 100;

synchronized void m1() throws InterruptedException {

b = 1000;

Thread.sleep(500); //6

System.out.println("b=" + b);

}

synchronized void m2() throws InterruptedException {

Thread.sleep(250); //5

b = 2000;

}

public static void main(String[] args) throws InterruptedException {

TestSync2 tt = new TestSync2();

Thread t = new Thread(tt); //1

t.start(); //2

tt.m2(); //3

System.out.println("main thread b=" + tt.b); //4

}

@Override

public void run() {

try {

m1();

} catch (InterruptedException e) {

e.printStackTrace();

}