JAVA多态性测试的基本实验------JAVA入门基础教程

package duotai;public class Person
{public void eat(){System.out.println("人吃饭");}public void Pdrink(){System.out.println("人喝水");}
}

package duotai;public class Man extends Person
{public void eat(){System.out.println("男人吃饭");}public void ManDrink(){System.out.println("喝酒");}
}

package duotai;public class Woman extends Person
{public void eat(){System.out.println("女人吃饭");}public void WDrink(){System.out.println("喝奶茶");}
}

 

package duotai;public class T
{public static void main(String[] args) {T t = new T();t.meet(new Man(),new Woman(),new Person());}public void meet(Person...p){for (int i = 0; i < p.length; i++){p[i].eat();if(p[i] instanceof Man){Man m = (Man)p[i];m.ManDrink();}else if(p[i] instanceof Woman){Woman w = (Woman)p[i];w.WDrink();}}}
}