Java多线程循环打印ABC等问题

最新推荐文章于 2024-06-24 11:09:01 发布

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最新推荐文章于 2024-06-24 11:09:01 发布 · 1.3k 阅读

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文章标签：

#多线程 #循环输出 #thread

前言

有很多中写法，希望可以慢慢都写出来。

1、线程共享类对象：依靠AtomicInteger是线程安全的

将 AtomicInteger currentCount 作为线程共享。


import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * 三个线程按次序轮流打印a,b,c AtomicInteger 实现
 *
 */
public class AtomicIntegerThread implements Runnable {
    private AtomicInteger currentCount = new AtomicInteger(0);

    private static final Integer MAX_COUNT = 6;

    private static String[] chars = {"a", "b", "c"};

    private String name;

    public AtomicIntegerThread(String name,AtomicInteger currentCount) {
        this.name = name;
        this.currentCount = currentCount;
    }

    @Override
    public void run() {
        while (currentCount.get() < MAX_COUNT) {
            if (this.name.equals(chars[currentCount.get() % 3])) {
                printAndPlusOne(this.name);
            }
        }
    }

    public void printAndPlusOne(String content) {
        System.out.print(content);
        currentCount.getAndIncrement();
    }

    public static void main(String[] args) {
        
        AtomicInteger currentCount = new AtomicInteger(0);

        ThreadPoolExecutor threadPoolExecutor = new ThreadPoolExecutor(3, 3, 20, TimeUnit.MINUTES, new LinkedBlockingQueue<Runnable>());
        threadPoolExecutor.execute(new AtomicIntegerThread("a",currentCount));
        threadPoolExecutor.execute(new AtomicIn