五种线程池的对比与使用_星空dream的博客_线程池比较

今天对五种常见的java内置线程池进行讲解。

线程使用的demo

public static void cache() {
        ExecutorService pool = Executors.newCachedThreadPool();
        long start = System.currentTimeMillis();
        pool.execute(() -> {
            int sum = 0;
            for (int i = 0; i < 10; i++) {
                sum = (int) Math.sqrt(i * i - 1 + i);
                System.out.println(sum);
            }
        });
        System.out.println("cache: " + (System.currentTimeMillis() - start));
    }
public sta