https://leetcode-cn.com/problems/print-in-order/

解决方案

class Foo {private AtomicInteger jobDone = new AtomicInteger(0);public Foo() {}public void first(Runnable printFirst) throws InterruptedException {// printFirst.run() outputs "first".printFirst.run();// mark the first job as done, by increasing its count.jobDone.incrementAndGet();}public void second(Runnable printSecond) throws InterruptedException {while (jobDone.get() != 1);// waiting for the first job to be done.// printSecond.run() outputs "second". Do not change or remove this line.printSecond.run();jobDone.incrementAndGet();}public void third(Runnable printThird) throws InterruptedException {while (jobDone.get() != 2);// waiting for the first job to be done.// printThird.run() outputs "third". Do not change or remove this line.printThird.run();jobDone.incrementAndGet();}
}

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LeetCode 1114 按序打印

解决方案

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