app14_5.java

JAVA 2面向对象程序设计(随书范例程序)13-15.rar

// app14_5, 启动线程的范例
class Ctest extends Thread  // 从Thread类扩展出子类
{
   private String id;
   public Ctest(String str){   // 构造函数，设置成员id
      id=str;
   }
   
   public void run(){    // 覆盖Thread类里的run() method
      for(int i=0;i<4;i++){
         try{
            sleep((int)(1000*Math.random()));
         }
         catch(InterruptedException e){}
         System.out.println(id+" is running..");
      } 
   }
}

public class app14_5
{
   public static void main(String args[])
   {  
      Ctest dog=new Ctest("doggy");
      Ctest cat=new Ctest("kitty"); 
      dog.start();     // 启动dog线程
      cat.start();     // 启动cat线程
      System.out.println("main() method finished");  
   }
}