70 lines
2.1 KiB
Markdown
70 lines
2.1 KiB
Markdown
```
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import java.util.concurrent.atomic.AtomicInteger;
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public class AlternatePrint {
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// 使用原子整数作为共享变量，初始值为1表示轮到线程1打印第一个数字
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private static AtomicInteger turn = new AtomicInteger(1);
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// 当前要打印的数字
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private static int currentNumber = 1;
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// 定义终止条件
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private static final int MAX_NUMBER = 100;
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public static void main(String[] args) {
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// 创建两个线程
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Thread thread1 = new Thread(() -> {
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while (currentNumber <= MAX_NUMBER) {
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// 线程1检查是否轮到自己
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if (turn.get() == 1) {
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System.out.println("线程1: " + currentNumber);
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// 切换到线程2
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turn.set(2);
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}
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// 短暂休眠以避免CPU过度使用
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try {
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Thread.sleep(10);
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} catch (InterruptedException e) {
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Thread.currentThread().interrupt();
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return;
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}
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}
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});
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Thread thread2 = new Thread(() -> {
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while (currentNumber <= MAX_NUMBER) {
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// 线程2检查是否轮到自己
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if (turn.get() == 2) {
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System.out.println("线程2: " + currentNumber);
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// 增加当前数字
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currentNumber++;
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// 切换回线程1
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turn.set(1);
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}
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// 短暂休眠
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try {
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Thread.sleep(10);
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} catch (InterruptedException e) {
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Thread.currentThread().interrupt();
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return;
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}
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}
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});
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// 启动线程
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thread1.start();
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thread2.start();
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// 等待线程结束
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try {
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thread1.join();
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thread2.join();
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} catch (InterruptedException e) {
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Thread.currentThread().interrupt();
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}
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System.out.println("所有数字打印完毕");
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}
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}
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``` |