package correctstart;
public class Machine extends Thread{
  private int a=0;
  private static int count=0;  //統(tǒng)計(jì)被啟動(dòng)的Machine線(xiàn)程的數(shù)目
  public void start(){
    super.start();
    System.out.println(currentThread().getName()
+":第"+(++count)+"個(gè)Machine線(xiàn)程啟動(dòng)");  //這行代碼由主線(xiàn)程執(zhí)行
  }
  public void run(){
for(a=0;a<50;a++){  //使用Machine對(duì)象的實(shí)例變量a
      System.out.println(currentThread().getName()+":"+a);
      try{
        sleep(100);
      }catch(InterruptedException e){ throw new RuntimeException(e);}
    }
  }
  public static void main(String args[]){
    Machine machine1=new Machine();
    Machine machine2=new Machine();
    machine1.start();
    machine2.start();
  }
}





/****************************************************
 * 作者：孫衛(wèi)琴                                     *
 * 來(lái)源：<<Java面向?qū)ο缶幊?gt;>                       *
 * 技術(shù)支持網(wǎng)址：www.javathinker.org                *
 ***************************************************/