Java中使用synchronized和Lock对象获取对象锁 - 编程入门网

Java中使用synchronized和Lock对象获取对象锁(6)

结果：

Thread-0:not synchronized in f()

Thread-0:synchronized in f()

main:not synchronized in h()

Thread-1:not synchronized in g()

Thread-0:synchronized in f()

Thread-0:synchronized in f()

Thread-0:synchronized in f()

Thread-0:synchronized in f()

main:synchronized in h()

main:synchronized in h()

main:synchronized in h()

main:synchronized in h()

main:synchronized in h()

Thread-1:synchronized in g()

Thread-1:synchronized in g()

Thread-1:synchronized in g()

Thread-1:synchronized in g()

Thread-1:synchronized in g()

Resource4.java

package com.zj.lock;import java.util.concurrent.TimeUnit;import java.util.concurrent.locks.Lock;import java.util.concurrent.locks.ReentrantLock; public class Resource4 {    private Lock lock1 = new ReentrantLock();    private Lock lock2 = new ReentrantLock();    private Lock lock3 = new ReentrantLock();     public void f() {       // other operations should not be locked...       System.out.println(Thread.currentThread().getName()              + ":not synchronized in f()");       lock1.lock();       try {           for (int i = 0; i < 5; i++) {              System.out.println(Thread.currentThread().getName()                     + ":synchronized in f()");              try {                  TimeUnit.SECONDS.sleep(3);              } catch (InterruptedException e) {                  e.printStackTrace();              }           }       } finally {           lock1.unlock();       }    }     public void g() {       // other operations should not be locked...       System.out.println(Thread.currentThread().getName()              + ":not synchronized in g()");       lock2.lock();       try {           for (int i = 0; i < 5; i++) {              System.out.println(Thread.currentThread().getName()                     + ":synchronized in g()");              try {                  TimeUnit.SECONDS.sleep(3);              } catch (InterruptedException e) {                  e.printStackTrace();              }           }       } finally {           lock2.unlock();       }    }     public void h() {       // other operations should not be locked...       System.out.println(Thread.currentThread().getName()              + ":not synchronized in h()");       lock3.lock();       try {           for (int i = 0; i < 5; i++) {              System.out.println(Thread.currentThread().getName()                     + ":synchronized in h()");              try {                  TimeUnit.SECONDS.sleep(3);       

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