Java创建线程池的步骤

在Java中创建线程池的步骤如下:

1. 通过使用java.util.concurrent.Executors类的静态工厂方法创建ExecutorService实例。
2. 为ExecutorService指定线程池大小。
3. 创建并执行任务。
4. 调用shutdown()方法关闭ExecutorService。

示例代码：

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class ThreadPoolExample {
  public static void main(String[] args) {
    ExecutorService executor = Executors.newFixedThreadPool(5);
    for (int i = 0; i < 10; i++) {
      Runnable worker = new WorkerThread("" + i);
      executor.execute(worker);
    }
    executor.shutdown();
    while (!executor.isTerminated()) {
    }
    System.out.println("Finished all threads");
  }
}