thread1.java

Java Classic Examples是我买的两本书：《JAVA经典实例》和《java入门经典源代码》里边附送光盘里带的源码

public class Thread1 extends Thread
{
    int k=0;
    public Thread1(String name,int k)
    {
        super(name);
        this.k = k;
    }
    public void run()                        //覆盖run方法的线程体
    {
        int i = k;
        System.out.println();
        System.out.print(getName()+":  ");
        while (i<50)
        {
            System.out.print(i+"  ");
            i+=2;
        }
        System.out.println(getName() +"  end!");
    }
    public static void main (String args[])
    {
        Thread1 t1 = new Thread1("Thread1",1);     //创建线程对象
        Thread1 t2 = new Thread1("Thread2",2);
        t1.start();                                //启动执行线程
        t2.start();
        System.out.println("activeCount="+t2.activeCount());
    }
}