《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。。。。。

 

posted @ 2015-04-25 20:04  羽翼还未丰满怎能高飞  阅读(257)  评论(0编辑  收藏  举报