jlab0504_2.java

java教程中的编程实例

abstract class Pet{
   protected String name;
   public Pet(String n){
         name=n;
              }
   public String getName(){
         return name;
         }
   public abstract String move();
   public abstract String speak();
   public String toString(){
          return "My pet "+name;
           }
}
     class Cat extends Pet{
     protected int weight;
               public Cat(String s){
                   super(s);
                  }
     public String move(){
        return "run";
           }
     public String speak(){
         return "miao miao";
           }
}
    class JLab0504_2{
          public static void main(String[] args){
               Cat myCat=new Cat("catmiao");
               System.out.println(myCat.toString()+"\n"+"Speak:"+
                                  myCat.speak()+"\n"+myCat.move()+" "+
                                  myCat.getName()+"\n");
             
}
}