静态方法或类 [英] static methods or classes

问题描述

我正在学习静态方法和类...
阅读了几篇文章，书籍等后，我得出以下结论:
您是否同意每一点?

谢谢

1-静态成员不能通过实例变量进行引用.
2-静态成员可以是抽象的吗?
3-此关键字不能在静态方法中使用
4-常量修饰符中不使用静态修饰符
5-类的每个实例可以有一个静态字段的副本.

Hi,
I am in the process of learning about static methods and classes...
After reading several articles, books, etc. I have concluded the following:
Do you agree with each point?

Thank you

1- Static members can not be references through instance variables.
2- static members can be abstract?
3- this keyword can not be used in static methods
4- static modifiers are not used in constant declaration
5- there can be a copy of a static field for each instance of a class.

推荐答案

1)是.
2)号
3)是的.
4)是的.
5)不.

1) yes.
2) no.
3) yes.
4) yes.
5) no.

要进一步阅读，

静态类和静态类成员 [

For further reading,

Static Classes and Static Class Members[^]

:)

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