会python真的可以为所欲为0(回)
399天前
这里还有人吗1(回)
584天前这里还有人吗0(回)
584天前
每天面对着电脑屏幕，敲打键盘。我所面对的并不只是代码，而是一种生活方式。0(回)
809天前到处都是羊，不想上班0(回)
889天前
鸽子
0(回)
893天前package com.jiarui; |
public class Demo1 { |
public static void main(String[] args) { |
|
Dog dog1= new Dog(2,"大黄"); |
System.out.println(dog1.name+"的年龄为："+dog1.getAge()); |
dog1.Cry(); |
|
Cat cat1=new Cat(3,"小花"); |
cat1.Cry(); |
System.out.println(cat1.name+"的年龄为："+cat1.getAge()); |
|
Abc abc= new Abc(); |
System.out.println(abc.getNum(12,18)); |
} |
} |
class Animal{ |
int age; |
String name; |
|
public Animal(){ |
|
this.age=age; |
this.name=name; |
} |
|
public void Cry(){ |
System.out.println("动物的叫声是：不知道。"); |
} |
} |
class Dog extends Animal{ |
//private int age; |
//public String name; |
|
public Dog(int age,String name){ |
|
this.age=age; |
this.name=name; |
} |
|
//方法的覆盖 |
public void Cry(){ |
|
System.out.println("狗的叫声是：汪汪"); |
} |
|
public int getAge(){ |
|
return this.age; |
} |
|
} |
class Cat extends Animal{ |
|
public Cat(int age,String name){ |
|
this.age=age; |
this.name=name; |
} |
|
public void Cry(){ |
System.out.println("猫的叫声是：喵喵!"); |
} |
|
public int getAge(){ |
|
return this.age; |
} |
} |
class Abc{ |
|
public int getNum(int i,int j){ |
|
if (i>j) { |
|
return i; |
}else { |
|
return j; |
} |
} |
//方法重载：只是返回类型不一样，不能构成重载 |
public float getNum(float a,float b){ |
|
if (a>b) { |
|
return a; |
|
}else { |
return b; |
} |
} |
|
|
} |
by: 发表于：2017-07-19 16:25:13 顶(0) | 踩(0) 回复
??
回复评论