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Thread: Array (of a class) memory(reference) comparison

  1. #1
    Junior Member
    Join Date
    Feb 2013
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    Default Array (of a class) memory(reference) comparison

    My goal is to sort an array of a class, for example myClass

    Sort the memory locations:
    For example if myClass[0] has a greater memorylocation than myClass[1] then i would like them to exchange place. Switch places are easy, but how do i find out what memorylocation is the greatest?

    this doesn't work, but you might get the idea of what i want to do:
    if(memorylocation of myClass[0] > memorylocation of myClass[1])
    //exchange memoryadresses

    for example: i want to change the memoryadresses below
    System.out.print(myClass[0]); -----> myClass@279febb9
    System.out.print(myClass[1]); -----> myClass@24db06de
    System.out.print(myClass[2]); -----> myClass@28db06de
    System.out.print(myClass[3]); -----> myClass@23db06de

    to this:
    System.out.print(myClass[0]); -----> myClass@23db06de
    System.out.print(myClass[1]); -----> myClass@24db06de
    System.out.print(myClass[2]); -----> myClass@279febb9
    System.out.print(myClass[3]); -----> myClass@28db06de

  2. #2
    Super Moderator Norm's Avatar
    Join Date
    May 2010
    Eastern Florida
    Thanked 2,614 Times in 2,564 Posts

    Default Re: Array (of a class) memory(reference) comparison

    The memory address/hashcode following the @ is a hex number. Look at the Integer class for a method to convert a String in base 16 to an int value that can be compared to other numbers.
    If you don't understand my answer, don't ignore it, ask a question.

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