I have a problem that I need help with. I have a HashSet that contains char[]. The problem is that I can't check if a value exists using the method contains(), it return false even if the value exists in the HashSet.
How can I resolve this problem ?
You can't use char[] in a HashSet, since the implementation of hashCode() and equals for a char[] is identity-based, not content-based -- in other words, if two char[] arrays have the same contents, that doesn't mean their hash codes are the same. Use String instead.
