/*
作者：qingfeng
日期：2017/2/18
功能：this，静态变量（类变量）
*/
class Demo3_2
{
public static void main(String args[])
{
Dog dog1 = new Dog(1, "黄黄");
Person p1 = new Person(dog1, 30, "周杰伦");
p1.showInfo();
Person p2 = new Person(dog1, 22, "关晓彤");
p2.showInfo();
System.out.println(p2.total);//访问静态变量:类名.静态变量 或者 对象名.静态变量
p1.dog.showInfo();
}
}
class Person
{
int age;
String name;
Dog dog; //引用类型
static int total = 0; //静态变量（类变量）静态变量：所有对象共有
public Person(Dog dog, int age, String name){
this.age = age;//this属于具体的对象
this.name = name;
this.dog = dog;
}
public void showInfo(){
total ++;
System.out.println("人名为"+this.name);
}
}
class Dog
{
int age;
String name;
public Dog(int age, String name){
this.age = age;//this属于具体的对象
this.name = name;
}
public void showInfo(){
System.out.println("狗名为"+this.name);
}
}