輸出的年齡一直為零為什么 （年齡：0狗具有吃東西的能力）
package com.imooc;
public class Initial {
public static void main(String[] args) {
// TODO Auto-generated method stub
Dog d=new Dog();
d.name="xiaotian";
d.eat();
d.age=2;
}
}
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package com.imooc;
public class Initial {
public static void main(String[] args) {
// TODO Auto-generated method stub
Dog d=new Dog();
d.name="xiaotian";
d.eat();
d.age=2;
}
}
2016-03-05
舉報(bào)
2016-03-05
package com.imooc;
public class Initial {
public static void main(String[] args) {
// TODO Auto-generated method stub
Dog d=new Dog();
d.name="xiaotian";
d.age=2;
d.eat();
}
}
2016-03-05
你Dog類里的age沒賦值，默認(rèn)為0
d.age=2;
d.eat();
換成這樣就好了