java 基础之权限修饰符初稿完工 #9
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我觉得跑题了，我觉得题目意思是解释权限访问修饰符的作用 然后解释让读者体会应用场景，是理解要理解封装，如何隐藏实现什么的，而不是解释修饰符。并且应该有帮助其他同学理解的点，阐述自己理解的思路，不然这么介绍一通，理解的还是理解，不理解的还是理解不了的 |
ikroal
reviewed
Nov 3, 2017
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| ## static | ||
| 字面意思：静态的。既然有静态的，那么肯定也会有相应的动态的，这里的静态和动态其实是相对于内存的变化来说的。 | ||
| 一个类在被实例化的时候，JVM 会给它初始化一个内存地址，如果这个类有多个实例，它们的内存地址是不一样的，这即是动态。那么静态就可以理解为它的内存地址是不会变的，被 static 修饰的变量和方法在类被初始化的时候会被分配到一个单独的内存地址中，一旦分配好就不会再变了。**这里是说的内存地址不会变，但是它里面的内容或值是可以变的，但是如果前面同时有 final 修饰的话，那么值也是不变的。** |
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java 基础之权限修饰符初稿完工