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集合框架可以说是Java里面必备的知识点了，日常的使用中也会遇到各种情况需要使用到集合。下面就简单介绍下各种集合的使用场景： List List可以看做是数组，实现的方式有两种： ArrayList 适合随机访问 LinkedList 适合做插入删除操作 Queue和Stack 这两种数据结构都可以...

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