java 4种线程池复习；

package com.xh;


import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.LinkedBlockingDeque;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

public class ThreadDemo03 {
	public static void main(String[] args) {
		//下面的都是从ThreadPoolExecutor构造出来的
		ThreadPoolExecutor tp = new ThreadPoolExecutor(10, 20, 60, TimeUnit.SECONDS, new LinkedBlockingDeque<Runnable>());
		  for(int i = 0;i<10;i++) {		 
			  int t = i;
			tp.execute(new Runnable() {
				
				@Override
				public void run() {
					// TODO Auto-generated method stub
					System.out.println("ThreadPoolExcutor创建的"+Thread.currentThread().getName()+"num=:"+t);
				}
			});
		  }
		//newcachedThreadPool 缓存线程池
		ExecutorService cachedThreadPool = Executors.newCachedThreadPool();
		for(int i = 0; i < 10; i++) {
			final int index = i;
			try {
				Thread.sleep(index*1000);
		} catch (InterruptedException e) {
				e.printStackTrace();
			}
			cachedThreadPool.execute(new Runnable () {
				public void run () {
					System.out.println(index);
				}
			});
		}


		//定长线程池
		ExecutorService fixedThreadPool = Executors.newFixedThreadPool(2);
		for(int i = 0; i < 10; i++) {
			final int index = i;
			fixedThreadPool.execute(new Runnable () {
				public void run () {
					System.out.println(index);
					try {
						Thread.sleep(2000);
					} catch (InterruptedException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
				}
			});
		}
		
		//定长线程池支持定时和周期性任务
		ScheduledExecutorService scheduleThreadPool = Executors.newScheduledThreadPool(5);
		scheduleThreadPool.schedule(new Runnable() {
			public void run() {
				System.out.println("delay 3 seconds");
			}
		}, 3, TimeUnit.SECONDS);
		
		//单线程化线程池
		ExecutorService singleThreadExecutor = Executors.newSingleThreadExecutor();
		for(int i = 0; i < 10; i++) {
			final int index = i;
			singleThreadExecutor.execute(new Runnable() {
				public void run() {
					try {
						System.out.println(index);
						Thread.sleep(2000);
					} catch (InterruptedException e) {
						e.printStackTrace();
					} 
				}
			});
		}

		
		
	}			
}