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Thread: Looking at a string ...

  1. #1
    Junior Member
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    Oct 2010
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    Default Looking at a string ...

    Hey guys - quick question.

    I'm writing a little program just for the fun of it, and to start off I'm having the user enter a string - the string will be inputted in the same format but there will be different numbers in the spots.

    I need to go through the string and when it comes upon the group of characters that will always match, I need it to pull the variable out. For example, the string will always have the format "This is x and this is y" - but x and y will change. So when it goes through the string and comes upon "and" it should go back and grab the x value.

    Any ideas?


  2. #2
    Grand Poobah
    Join Date
    Mar 2011
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    Thanked 167 Times in 158 Posts

    Default Re: Looking at a string ...

    Quote Originally Posted by joshft91 View Post
    but there will be different numbers in the spots.
    If you mean the input will be like:

    This is 2 and this is 2564
    This is 42 and this is 12

    then you can use the Pattern and Matcher classes.

  3. #3
    Junior Member
    Join Date
    May 2011
    Thanked 1 Time in 1 Post

    Default Re: Looking at a string ...

    Look up 'Regular Expressions'. This is a good place to start:

    Lesson: Regular Expressions (The Java™ Tutorials > Essential Classes)

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