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Thread: How to sort a Map.Entry in a for loop?

  1. #1
    Junior Member
    Join Date
    Mar 2012
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    Default How to sort a Map.Entry in a for loop?

    Hello, I have this Map in a for loop:
    for (Map.Entry<String, List<String>> entry : storage.entrySet()) {
                sendGroupStrings(sender, entry.getValue(), entry.getKey());

    The issue is, whenever the method sendGroupStrings() is ran, it displays the data randomly. I need to sort the data(alphabetically) in the entry map in order to display those strings properly. Now, I've already tried using a TreeMap, but I was unable to find a way to get the Key data(which is required in sendGroupStrings()) in order to make it work. However, I am open to other suggestions.

    Basically, I need the data to be pulled from entry, sorted alphabetically, and then ran through sendGroupStrings().

  2. #2
    Super Moderator Norm's Avatar
    Join Date
    May 2010
    Eastern Florida
    Thanked 2,486 Times in 2,437 Posts

    Default Re: How to sort a Map.Entry in a for loop?

    You need to look through the choice of classes and methods in the collection framework to find the combination that will do what you want.
    If you don't understand my answer, don't ignore it, ask a question.

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