两个线程交替打印0-9之间数字，使用Condition

import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.ReentrantLock;

public class ConditionDemo {
    static private ReentrantLock lock = new ReentrantLock();
    static private Condition condition = lock.newCondition();
    static AtomicInteger atomicInteger = new AtomicInteger(0);

    public static void main(String[] args) {
        new Thread(new Task()).start();
        new Thread(new Task()).start();
    }

    static class Task implements Runnable{
        @Override
        public void run() {
            lock.lock();
            try {
                while (atomicInteger.get() < 10){
                    System.out.println(Thread.currentThread().getName()+"_print:"+atomicInteger.getAndIncrement());
                    condition.signal();
                    try {
                        // 防止一个线程执行结束,另一个线程没有被唤醒
                        condition.await(500, TimeUnit.NANOSECONDS);
                    } catch (InterruptedException e) {
                    }
                }
            }finally {
                System.out.println(Thread.currentThread().getName()+"_end...");
                lock.unlock();
            }
        }
    }
}

打印效果如下