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I have a problem doing this since I need to sort it in this way:

Before:

{aAbB, abBA, AaBb}

After:

{AaBb, aAbB, abBA}

The idea is sorting a uppercase letter right before it's lowercase version, and that with every letter. I'm actually using a Collator for Spanish (problems with the 'ñ') and set it's strength to PRIMARY so I can compare if two words are equal not having care of capital letters.

Mick Mnemonic
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DrDomingas
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2 Answers2

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Just do:

private static Comparator<String> ALPHABETICAL_ORDER = new Comparator<String>() {
    public int compare(String str1, String str2) {
        int res = String.CASE_INSENSITIVE_ORDER.compare(str1, str2);
        if (res == 0) {
            res = (str1.compareTo(str2)==0) ? 1 : 0;
        }
        return res;
    }
};

Collections.sort(list, ALPHABETICAL_ORDER);

Inspired from: Simple way to sort strings in the (case sensitive) alphabetical order

Community
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Cukic0d
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This produces the desired result.

Arrays.sort(stringArray)
prashant
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  • While this code may answer the question, it would be better to explain how it solves the problem without introducing others and why to use it. Code-only answers are not useful in the long run. – JNYRanger Dec 01 '15 at 19:48