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java number formatting

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  • 03-03-2006 7:47pm
    #1
    Scruff
    Registered Users Posts: 4,222 ✭✭✭


    yes it may be trivial but my head is too melted at this stage on a Friday evening to work this out. :(

    basically all i need it how to format an integer so that if its less than 10 it will have the 0 before the number

    e.g 1 to 01, 5 to 05 etc

    Thanks!


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    #2
    deimos
    Closed Accounts Posts: 210 ✭✭deimos


    Scruff wrote:
    yes it may be trivial but my head is too melted at this stage on a Friday evening to work this out. :(

    basically all i need it how to format an integer so that if its less than 10 it will have the 0 before the number

    e.g 1 to 01, 5 to 05 etc

    Thanks!

    If you mean for printing it out on the screen I would use a conditional operator


    System.out.println("Number: " + (i > 10 ? "" : "0") + i);


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    #3
    i_am_dogboy
    Registered Users Posts: 1,272 ✭✭✭i_am_dogboy


    You'd want to use the NumberFormat class
    import java.text.NumberFormat;
.
.
NumberFormat nf = NumberFormat.getInstance();
nf.setMinimumIntegerDigits(2);
.
.
System.out.println(nf.format(theNumber));


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