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怎样建设网站最好百色seo关键词优化公司

wzjs 2025/7/31 22:57:37

怎样建设网站最好,百色seo关键词优化公司,济南建设银行网站,网站权重怎么刷1.通过 synchronized wait notifyAll 控制三个线程依次输出 abc abc abc abc abc private static Thread t1, t2, t3;// 用于控制当前哪一个线程执行, state 0时 t1线程执行， state 1时 t2线程执行，state 2时 t3线程执行private static int state 0…

1.通过 synchronized wait notifyAll 控制三个线程依次输出 abc abc abc abc abc

	private static Thread t1, t2, t3;// 用于控制当前哪一个线程执行, state = 0时 t1线程执行， state = 1时 t2线程执行，state = 2时 t3线程执行private static int state = 0;@Testpublic void test3() throws InterruptedException {t1 = new Thread(() -> {synchronized (lock) {for (int i = 0; i < 5; i++) {while (state != 0) {try {lock.wait();} catch (InterruptedException e) {throw new RuntimeException(e);}}log.info("---------------" + i + "-------------------");log.info("a");state = 1;lock.notifyAll();}}});t2 = new Thread(() -> {synchronized (lock) {for (int i = 0; i < 5; i++) {while (state != 1) {try {lock.wait();} catch (InterruptedException e) {throw new RuntimeException(e);}}log.info("b");state = 2;lock.notifyAll();}}});t3 = new Thread(() -> {synchronized (lock) {for (int i = 0; i < 5; i++) {while (state != 2) {try {lock.wait();} catch (InterruptedException e) {throw new RuntimeException(e);}}log.info("c");state = 0;lock.notifyAll();}}});t1.start();t2.start();t3.start();t1.join();t2.join();t3.join();}

2.通过 ReenTrantLock 控制三个线程依次输出 abc abc abc abc abc

	private static Thread t1, t2, t3;// 用于控制当前哪一个线程执行, state = 0时 t1线程执行， state = 1时 t2线程执行，state = 2时 t3线程执行private static int state = 0;private static final Lock reentrantLock = new ReentrantLock();private static final Condition[] conditions = new Condition[3];@Testpublic void test4() throws InterruptedException {for (int i = 0; i < 3; i++) {conditions[i] = reentrantLock.newCondition();}Thread t1 = new Thread(() -> {reentrantLock.lock();try {for (int i = 0; i < 5; i++) {while (state != 0) {conditions[0].await();}log.info("---------------" + i + "-------------------");log.info("a");state = 1;conditions[1].signal();}} catch (InterruptedException e) {throw new RuntimeException(e);} finally {reentrantLock.unlock();}});Thread t2 = new Thread(() -> {reentrantLock.lock();try {for (int i = 0; i < 5; i++) {while (state != 1) {conditions[1].await();}log.info("b");state = 2;conditions[2].signal();}} catch (InterruptedException e) {throw new RuntimeException(e);} finally {reentrantLock.unlock();}});Thread t3 = new Thread(() -> {reentrantLock.lock();try {for (int i = 0; i < 5; i++) {while (state != 2) {conditions[2].await();}log.info("c");state = 0;conditions[0].signal();}} catch (InterruptedException e) {throw new RuntimeException(e);} finally {reentrantLock.unlock();}});t1.start();t2.start();t3.start();t1.join();t2.join();t3.join();}

3.通过 park unpark 控制三个线程依次输出 abc abc abc abc abc

	private static Thread t1, t2, t3;@Testpublic void test5() throws InterruptedException {t1 = new Thread(() -> {for (int i = 0; i < 5; i++) {log.info("---------------" + i + "-------------------");log.info("a");LockSupport.unpark(t2);LockSupport.park();}});t2 = new Thread(() -> {for (int i = 0; i < 5; i++) {LockSupport.park();log.info("b");LockSupport.unpark(t3);}});t3 = new Thread(() -> {for (int i = 0; i < 5; i++) {LockSupport.park();log.info("c");LockSupport.unpark(t1);}});t1.start();t2.start();t3.start();t1.join();t2.join();t3.join();}