如何合并两个不重复的 ArrayList? [英] How to merge two ArrayLists without duplicates?

问题描述

我有两个数组列表

ArrayList one = {A, B, C, D, E}
ArrayList two = {B, D, F, G}  

我想要我的最终 ArrayList，它包含 All 一的元素和只有两个而不是一个的元素.

I want to have my final ArrayList which will have All the elements of one and the elements which are only in two and not in one.

所以ArrayList final = {A、B、C、D、E、F、G}.

So ArrayList final = {A, B, C, D, E, F, G}.

我该怎么做?

推荐答案

for (Object x : two){
   if (!one.contains(x))
      one.add(x);
}

假设您不想使用评论中建议的集合.如果您正在寻找比这更有趣的东西，请澄清您的问题.

assuming you don't want to use the set suggested in the comment. If you are looking for something fancier than this please clarify your question.

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