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Thread: Re: Sorting Algorithms

  1. #1
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    Default Re: Sorting Algorithms

    I have to sort a list on Parent Child relation
    say
    I have a following list
    Object(Id,ParentId,.........)
    obj1(1,1,........);
    obj2(2,1,........);
    obj3(3,3,........);
    obj4(4,1,........);
    obj5(5,3,........);
    obj6(6,1,........);
    obj7(7,3,........);
    obj8(8,4,........);

    Logic is such that
    If Id and Parent Id is same then It is Parent Record
    I want the Result like
    obj1(1,1,........);
    obj2(2,1,........);
    obj4(4,1,........);
    obj6(6,1,........);
    obj3(3,3,........);
    obj5(5,3,........);
    obj7(7,3,........);
    obj8(8,4,........);


    Suggect Some Logic...............

    Thanks in advance.............


  2. #2
    Super Moderator copeg's Avatar
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    Default Re: Sorting Algorithms

    Moved to Java Theory & Questions

    What have you tried so far? How are you sorting? See Comparator (Java Platform SE 6) and http://www.javaworld.com/javaworld/j...1227-sort.html

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