可重入锁ReentrantLock,代码编译测试 - 在线编译器(yxjc123.com)

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                    import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public class ReentrantLockExample extends Thread {
    public static  Integer count=1;
    private static final Lock lock = new ReentrantLock();

    public ReentrantLockExample() { }

    @Override
    public void run() {
        while(true){
            if (count>10){
                System.out.println(getName() + "退出，count值: "+count);
                break;
            }

            try {
                lock.lock();
                count = count +2;
                lock.lock();
                System.out.println(getName() + "，count值"+count);
                count = count - 1;

            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                lock.unlock();
                lock.unlock();
            }

            try {
                Thread.sleep(1);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

        }

    }

    public static void main(String args[]) throws InterruptedException {
        ReentrantLockExample task1 = new ReentrantLockExample();
        ReentrantLockExample task2 = new ReentrantLockExample();

        task1.start();
        task2.start();

    }

}
                

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