两个阵列之间的差异 [英] differences between two arrays

问题描述

可能重复：结果
  <一href=\"http://stackoverflow.com/questions/5283047/intersection-union-of-arraylists-in-java\">intersection/union在java中的ArrayList的

Possible Duplicate:
intersection/union of arraylists in java

您好，我有两个字符串arrays.I要打印这两arrrays.Is有任何Java方法之间的差异？
例如;

Hello I have two string arrays.I want to print differences between two arrrays.Is there any java method for this? For example;

String[ ] first={"A","B","C"};
String[ ] second={"C","B"};

和结果必然是A。
感谢所有的意见。

and result must be "A". Thanks for all comments.

推荐答案

转换阵列设置＆LT;串GT;

new HashSet<String>(Arrays.asList(array));

和做

Set<String> commonOnes = biggerSet.retainAll(smallerSet);
biggerSet.removeAll(commonOnes).add(smallerSet.removeAll(commonOnes))

或使用番石榴<一个href=\"http://docs.guava-libraries.google$c$c.com/git-history/v9.0/javadoc/com/google/common/collect/Sets.html#difference%28java.util.Set,%20java.util.Set%29\"相对=nofollow> 差（）

or use guava difference()

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