Java：多线程，java.util.concurrent.atomic包之AtomicInteger/AtomicLong用法

package com.clzhang.sample.thread;

import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;

public class SimpleTest implements Runnable {
    // 创建AtomicInteger，初始值0（也可以指定初始值）
//    private static final AtomicInteger nextSerialNum = new AtomicInteger();
    private static final AtomicLong nextSerialNum = new AtomicLong();

    @Override
    public void run() {
        
        // 直接取得当前值并增长1
        System.out
                .println(Thread.currentThread().getName() + ":" + nextSerialNum.getAndIncrement());
        try {
            Thread.sleep(100);
        } catch (InterruptedException e) {
        }
    }

    public static void main(String[] args) {
        SimpleTest st = new SimpleTest();

        for (int i = 0; i <100; i++) {
            new Thread(st, "Thread" + i).start();
        }
    }
}