源代码： 交替打印奇偶数
作者：互联网
```java
public class TwoThread {
private int start = 1;
/**
* 对 flag 的写入虽然加锁保证了线程安全，但读取的时候由于 不是 volatile 所以可能会读取到旧值
*
*/
private volatile boolean flag = false;
/**
* 重入锁
*/
private final static Lock LOCK = new ReentrantLock();
public static void main(String[] args) {
TwoThread twoThread = new TwoThread();
Thread t1 = new Thread(new OuNum(twoThread));
t1.setName("t1");
Thread t2 = new Thread(new JiNum(twoThread));
t2.setName("t2");
t1.start();
t2.start();
}
/**
* 偶数线程
*/
public static class OuNum implements Runnable {
private TwoThread number;
public OuNum(TwoThread number) {
this.number = number;
}
@Override
public void run() {
while (number.start <= 1000) {
if (number.flag) {
try {
LOCK.lock();
System.out.println(Thread.currentThread().getName() + "+-+" + number.start);
number.start++;
number.flag = false;
} finally {
LOCK.unlock();
}
}
}
标签：奇偶,TwoThread,Thread,打印,number,start,new,源代码,public 来源： https://blog.csdn.net/m0_66194642/article/details/122663205