java继承

public class Anmial{

    int age;
    String name;
    public static void main(String[] args)
    {

          Dog dog=new Dog();
          dog.SetAge(10);
          System.out.print(dog.GetAge());
    }



}


class Dog extends Anmial{

     float height;
      void SetAge(int age)
      {
           this.age=age;
      }

      int GetAge()
     {

          return age;
     }

}

• 内存分析
• 使用extends关键字来继承
• java只支持单继承，不支持多继承