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geekerstar/dive-in-interview
Singleton:在Java中即指单例设计模式,它是软件开发中最常用的设计模式之一。 单例设计模式,即某个类在整个系统中只能有一个实例对象可被获取和使用的代码模式。 方法调用自身称为递归,利用变量的原值推出新值称为迭代。 递归 优点:大问题转化为小 ...
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