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java基础——List迭代过程中删除、新增元素

异常信息java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:909) at java.util.ArrayList$Itr.next(Ar...

请问java性能问题：如何快速的迭代一个包含50万条数据的HashMap中的键？

java性能问题：如何快速的迭代一个包含50万条数据的HashMap中的键？

我的Java程序代码庞大，设计模式便能发挥性能调优、优化、扩展作用，请问什么是迭代模式？

设计模式是前辈们用毕生心血专业填坑换来的经验，把这些经验加工精简，就成了设计模式，也就是套路。有了套路，就把类型的业务类型套上去就OK了，不会出太大的问题，也利于软件的开发速度和扩展性。请问什么是迭代模式？

Java如何迭代时从 ArrayList 中删除元素？

求思路

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更新时间 2024-03-09 13:40:14

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