Java Notes
1: final关键字 工具类:不允许被继承的类 局部变量:基本类型前加final声明 方法:不允许被重写的方法
VM发展到现在,我们声明 final 的目的已经不再主要是性能问题了,而是正确性、合理性、严谨性的问题。 用来提醒自己以及其他人,这里的参数/变量是真的不能被修改,并让Java编译器去检查到底有没有被乱改
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Java Notes
1: final关键字 工具类:不允许被继承的类 局部变量:基本类型前加final声明 方法:不允许被重写的方法
VM发展到现在,我们声明 final 的目的已经不再主要是性能问题了,而是正确性、合理性、严谨性的问题。 用来提醒自己以及其他人,这里的参数/变量是真的不能被修改,并让Java编译器去检查到底有没有被乱改
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