38 lines
984 B
Java
38 lines
984 B
Java
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package thread_1.safe1;
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import lombok.Getter;
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import java.util.concurrent.locks.Lock;
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import java.util.concurrent.locks.ReentrantLock;
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@Getter
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public class SafeCounter {
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private static final Lock lock = new ReentrantLock();
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private static Integer count = 0;
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public static void main(String[] args) throws InterruptedException {
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// 创建 1000 个线程并进行计数
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Thread[] threads = new Thread[1000];
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for (int i = 0; i < 1000; i++) {
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threads[i] = new Thread(() -> {
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for (int j = 0; j < 1000; j++) {
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lock.lock();
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count++;
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lock.unlock();
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}
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});
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threads[i].start();
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}
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// 等待所有线程完成
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for (int i = 0; i < 1000; i++) {
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threads[i].join();
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}
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// 输出最终计数值
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System.out.println("Count: " + count); // 结果应该等于 1000000
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}
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}
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