How to remove same words?

Question

How to remove same words from string array? Here is code example i want to use, but it does not working

String[] wordList = outString.toString().split(", ");
for (int i = 0; i < wordList.length; i++) {
    for (int j = 0; j < wordList.length; j++) {
        if ((wordList[i].equals(wordList[j]))&&(j!=i)) {
            wordList.remove(wordList[i]);
        }
    }
}

`it does not working` Well that's not helpful at all! What does it do? Remove all the words? Throw an exception? Not do anything? How can we read your mind to find out the actual problem? — tckmn, Apr 09 '13 at 21:04
Suggest you sort the array, then for each word search forward until you find a non-matching word. — Taylor, Apr 09 '13 at 21:04
This code won't even run... an `Array` doesn't have a `remove` method. Try again... — Darwind, Apr 09 '13 at 21:05

score 4 · Accepted Answer · answered Apr 09 '13 at 21:06

4

A rule of Sets is that there can only be unique items in them. Therefore, the following code should suffice:

Set<String> mySet = new HashSet<String>(Arrays.asList(someArray));

answered Apr 09 '13 at 21:06

adchilds

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score 2 · Answer 2 · answered Apr 09 '13 at 21:06

2

You can use

Set<String> uniqueWords = new HashSet<>(Arrays.asList(outString.split(", ")));
System.out.println(uniqueWords);

answered Apr 09 '13 at 21:06

jlordo

37,490
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How to remove same words?

2 Answers2