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Java面试（static 关键字）(final关键字)

staticstatic 是 Java 中⾮常重要的关键字，static 表示的概念是静态的，在 Java 中，static 主要⽤来修饰变量，static 修饰的变量称为静态变量、也称为类变量，类变量属于类所有，对于不同的类来说，static 变量只有⼀份，static ...

一文带你了解Java中的static 静态关键字和final 不可变关键字

static 静态关键字java中，static是一个修饰符，用于修饰类的成员方法、类的成员变量，还可以修饰代码块。被static关键字修饰的方法或者变量不需要依赖于对象来进行访问，只要类被加载了，就可以通过类名去进行访问。静态static关键字修饰成员变量如果一个成员变量使用了static关键字,...

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java7 --1 static关键字，main方法详解，单例设计模式，继承，super关键字，instanceof关键字，final关键字

1 static关键字1：如果没有static会怎样？1：定义Person类1：姓名、年龄、国籍，说话行为2：多个构造，重载形式体现2：中国人的国籍都是确定的1：国籍可以进行显示初始化class Person { String name; int age;...

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