Java arraylist toarray-阿里云

Java ArrayList toArray() 方法的返回值是什么？

Java ArrayList toArray() 方法的语法是什么？

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【Java】ArrayList 的 toArray() 方法抛出 ClassCastException 异常

第一次用这个方法，结果冒出个莫名其妙的异常来： String[] names = (String[]) mTags.toArray(); 结果会抛出 java.lang.ClassCastException 异常信息网上谷歌了一下，发现这个 toArray 的正确用法应该是这样子才对： ...

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更新时间 2023-01-13 18:09:34

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