Reentrantlock用于替代synchronized
package cn.qqjx.thread;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
public class T02_ReentrantLock2 {
Lock lock = new ReentrantLock();
void m1() {
try {
lock.lock();
for (int i = 0; i < 10; i++) {
TimeUnit.SECONDS.sleep(1);
System.out.println(Thread.currentThread().getName() + "---------" +i);
}
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
lock.unlock();
}
}
void m2() {
try {
lock.lock();
System.out.println(Thread.currentThread().getName() + "---------" +"m2 ...");
} finally {
lock.unlock();
}
}
public static void main(String[] args) {
T02_ReentrantLock2 rl = new T02_ReentrantLock2();
new Thread(()->rl.m1()).start();
try {
TimeUnit.SECONDS.sleep(1);
} catch (InterruptedException e) {
e.printStackTrace();
}
new Thread(()->rl.m2()).start();
}
}
Thread-0---------0
Thread-0---------1
Thread-0---------2
Thread-0---------3
Thread-0---------4
Thread-0---------5
Thread-0---------6
Thread-0---------7
Thread-0---------8
Thread-0---------9
Thread-1---------m2 ...