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Thread: Java String value increment

  1. #1
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    Thumbs up Java String value increment

    Java-code --
    String value = 00008, increment something like 00008 to 00009.
    If anyone can help me here I'd greatly appreciate it, thanks!


  2. #2
    Super Moderator pbrockway2's Avatar
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    Default Re: Java String value increment

    Are you sure you really want to increment a String? The reason I ask is that if you are continually wanting to increment an integer value associated with a String it might make more sense to have an int variable and increment that.

    If you really have a String and want to produce another string associated with the incremented value: use Integer.parseInt() to obtain the integer value, increment that value, and finally produce the new String with String.format().

    The last step will involve something like String.format("%05d",val) but check the documentation linked to for details about the format string.

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    Default Re: Java String value increment

    Code is something like..
    String s = "00008";
    int i =Integer.parseInt(s);
    System.out.println("i.."+i); // 8
    String s1 = String.format("%05d",i);
    System.out.println("s1......."+s1); // 00008

    How to increment results = s1+1 ; ?

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    Super Moderator jps's Avatar
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    Default Re: Java String value increment

    String.format("%05d",i);
    --->
    String.format("%05d", i + 1);

    ... ?

  5. The Following User Says Thank You to jps For This Useful Post:

    raghu3.ankam (May 24th, 2013)

  6. #5
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    Default Re: Java String value increment

    thanks..

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