java基礎---->java多線程的使用（四）

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　　線程的priority能告訴發送器其重要性如何，今天我們通過執行個體來學習一下java多線程中的關於優先順序的知識。

 

java多線程的優先順序一、java多線程中關於優先順序的執行個體

package com.linux.huhx.thread1;import java.util.Random;import java.util.concurrent.TimeUnit;public class PriorityThread extends Thread {    PriorityThread(String name, int priority) {        super(name);        setPriority(priority);    }    @Override    public void run() {        for (int i = 0; i < 10; i++) {            try {                System.out.println(Thread.currentThread().getName() + ", " + i + ", priority = " + Thread.currentThread().getPriority());                TimeUnit.SECONDS.sleep(new Random().nextInt(5));            } catch (InterruptedException e) {                e.printStackTrace();            }        }    }}

測試的主體類內容如下：

package com.linux.huhx.thread1;public class PriorityThreadTest {    public static void main(String[] args) {        PriorityThread thread1 = new PriorityThread("T-1", Thread.NORM_PRIORITY);        PriorityThread thread2 = new PriorityThread("T-2", Thread.MAX_PRIORITY);        thread1.start();        thread2.start();    }}

一次的運行結果如下：

T-2, 0, priority = 10T-1, 0, priority = 5T-2, 1, priority = 10T-2, 2, priority = 10T-1, 1, priority = 5T-1, 2, priority = 5T-1, 3, priority = 5T-2, 3, priority = 10T-1, 4, priority = 5T-1, 5, priority = 5T-2, 4, priority = 10T-2, 5, priority = 10T-2, 6, priority = 10T-1, 6, priority = 5T-2, 7, priority = 10T-1, 7, priority = 5T-1, 8, priority = 5T-1, 9, priority = 5T-2, 8, priority = 10T-2, 9, priority = 10

 儘管處理器處理現有線程集的順序是不確定的，但是如果有許多線程被阻塞並在等待運行，那麼發送器將傾向於讓優先權最高的線程先執行。

 

友情連結

• 關於java中多線程優先順序的部落格：http://www.cnblogs.com/wuyudong/p/java-multithreading8.html

 

java基礎---->java多線程的使用（四）