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Thread: Reading from one file and write certain strings to another file

  1. #1
    Junior Member
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    Default Reading from one file and write certain strings to another file

    Hey, I'm pretty rusty as I haven't coded in a while but basically I need to:

    Read through a text file that has many 16 char strings in the format "123456789_123456", some of which are appended to each other on the same line e.g. "123456789_123456123456789_123456123456789_123 456" that would be 3 of these 16 char strings appended to one another. I need to put strings in a new text file which their last 2 digits equals "00" and place all the found strings on a new line each.

    Can anyone provide any assistance? I know how to open files and read and write to them. I just don't know how to specifically search through it to look for the last 2 digits of a string and then put it in a new file with each string being on a new line.

    Any assistance greatly appreciated!

    Thank you.

  2. #2
    Super Moderator
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    Jun 2013
    So. Maryland, USA
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    Default Re: Reading from one file and write certain strings to another file

    Welcome to the forum! Please read this topic to learn how to post code in code or highlight tags and other useful info for new members.

    Refer to the String API for the available methods. There are a few there you should find helpful. You've shown some variation in the 16-character Strings that might be a challenge but nothing that can't be overcome once all of the possible variations are understood.

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