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Thread: [ask] about sorting number.

  1. #1
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    Default [ask] about sorting number.

    before i start my question, i want to say sorry if i ask too much in this forum.
    and i want to thanks to peoples here that let me asking in this forum. because i can learn fast through asking, not from reading. but i try.

    ok..now, i want to ask about sorting letter with number together.
    what i know is just sorting number and letter in different method
    public class Dblsrt {
     
        public static void main(String[] args) {
            //... 1. for letter
            Integer[] names = {"Z", "A", "D"};
            Arrays.sort(names);
            System.out.println(Arrays.toString(names));
     
            //... 2.for words.
            double[] lengths = {0,123.99};
            Arrays.sort(lengths);
            System.out.println(Arrays.toString(lengths));
        }
    }
    for that code above, the input will be show like this:
    [A, D,Z]
    [0,  99, 123]


    but, what i want to learn is how to sorting data like: Alison, with value: 0 (Alison, 0). <--i dont know how to call this situation.

    in other words, the output will be sorted from higher number, not from small number and not from letter. for example output:
    1st> i input Alison, with value: 0.
    then, 2nd> i input Zoe, with value: 120.
    lastly, 3rd> i input David, with value: 99.

    then the output will be displayed like this:
    1> Zoe, 120
    2> David, 99
    3>Alison, 0


  2. #2
    Administrator copeg's Avatar
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    Default Re: [ask] about sorting number.

    This tutorial may help: Object Ordering (The Java™ Tutorials > Collections > Interfaces)

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