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作者	怎样引用public的非静态变量？
ggloverv 发贴: 5 积分: 0	于 2008-10-26 21:03 public class Shit { public int i=2; public static int j=3; public static void main(String[] args) { System.out.println(i);//有错 System.out.println(j); } } 怎样才能输出那个i呢？ RVstudio

作者	Re:怎样引用public的非静态变量？ [Re:ggloverv]
ice0819 发贴: 17 积分: 1	于 2008-10-27 17:23 Shit shit=new Shit（）； System.out.println(shit.i);

作者	Re:怎样引用public的非静态变量？ [Re:ggloverv]
winoo7 发贴: 1 积分: 0	于 2008-10-28 08:43 Shit s = new Shit(); System.out.println(s.i);

作者	Re:怎样引用public的非静态变量？ [Re:ggloverv]
gbluo 发贴: 5 积分: 0	于 2008-10-28 09:23 还有别的方法吗? gbluo edited on 2008-10-28 09:26

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Re:怎样引用public的非静态变量？ [Re:gbluo]

JiafanZhou

版主

发贴: 736
积分: 61

于 2008-11-11 22:17

gbluo wrote:
还有别的方法吗?

No! It is the only mean to get access to the non-static member field. The reason for this is that non static member fields or methods are bounded to a specific instance of the object. Thus it will be forced to be manipulated by the instance reference.

Another thing worth to be mentioned is that it is *not* recommended to declare public to member fields. It would be preferred to declare public get/set methods, in conformance with the JavaBean standard. And it is subject to one of the most important OO rule: Encapsulation.

By the way, why do you declare your class name as "SHXT"? It is a forbidden keyword in the Java World.... Smile

Regards,
Jiafan

When I was a kid I used to pray every night for a new bike. Then I realized that The Lord doesn't work that way, so I stole one and asked him to forgive me.

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