《多线程简单的应用》
好,谈到线程的应用,我们需要先知道线程的创建。线程的创建用两种方式:一、继承Thread类 二、声明实现Runnable方法
方法一:
package thread; //继承Thread类 public class PracticeThread extends Thread { public int judge; public PracticeThread(int judge) { super(); this.judge = judge; } @Override public void run() { if (judge < 0) { for (char ch = 'a'; ch < 'z'; ch++) { System.out.print(" " + ch); } } else { for (char ch = 'A'; ch < 'Z'; ch++) { System.out.print(" " + ch); } } } }
方法二:
package thread; public class PracticeThreadt implements Runnable { public int judge; public PracticeThreadt(int judge) { super(); this.judge = judge; } @Override public void run() { if (judge < 0) { for (char ch = 'a'; ch < 'z'; ch++) { System.out.print(" " + ch); } } else { for (char ch = 'A'; ch < 'Z'; ch++) { System.out.print(" " + ch); } } } }
而线程的启动也有两种方式:
package thread; public class Test { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub PracticeThread pt = new PracticeThread(0) ; PracticeThread pt2 = new PracticeThread(-1) ; /* 线程实现方法一 */ pt.start() ; pt2.start() ; /* 线程实现方法二 */ new Thread(pt).start() ; new Thread(pt2).start() ; for (int i = 0; i < 5; i++) { BanZhuan<Object> bz = new BanZhuan<Object>(5); bz.start(); } } }
我们知道怎么创建与启动线程了,那么需要知道线程也是有优先级的。最低优先级是:MIN_PRIORITY(1) 默认优先级是:NORM_PRIOBITY(5) 最高优先级是:MAX_PRIOBITY(10) 线程名默认为:Thread-(0-max) ——如:Thread1、Thread2。。。。。