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

public class ThreadPool {

	public static void main(String[] args) throws Exception {
		ExecutorService pool = Executors.newCachedThreadPool();
		for(int i = 1; i <= 10; i++){
			pool.execute(new Runnable() {
				public void run() {
					System.out.println("thread name: " + Thread.currentThread().getName());
					try {
						Thread.sleep(1000);
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
				}
			});
		}
		Thread.sleep(10000);
		System.out.println("----------------------------------");
		
		for(int i = 1; i <= 15; i++){
			pool.execute(new Runnable() {
				public void run() {
					System.out.println("thread name: " + Thread.currentThread().getName());
					try {
						Thread.sleep(1000);
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
				}
			});
		}
		
		
		pool.shutdown();
	}

}
 

import java.io.Serializable;
import java.util.Date;

public class Task implements Runnable, Serializable {

	private static final long serialVersionUID = 1L;

	@Override
	public void run() {
		System.out.println(new Date());
	}

}

import java.io.FileOutputStream;
import java.io.ObjectOutputStream;


public class SerTask {

	public static void main(String[] args) throws Exception {
		Task t = new Task();
		ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("c://tasks"));
		oos.writeObject(t);
		oos.close();
	}
}
 

import java.io.FileInputStream;
import java.io.ObjectInputStream;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class DesTask {

	public static void main(String[] args) throws Exception {
		ObjectInputStream ois = new ObjectInputStream(new FileInputStream("c://tasks"));
		ExecutorService pool = Executors.newFixedThreadPool(5);
		Task t = (Task) ois.readObject();
		pool.execute(t);
		ois.close();
		pool.shutdown();
	}

}