[Solved] Separate Int from String on file input [closed]

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Depending on your needs, it looks like something that could be solved using regex or string splitting by a regex number pattern then filtering out what you need.

Example of doing the first line for matching 1 and 3

    String s = "Z=1X1+3X2";
    Pattern p = Pattern.compile("([13])");
    Matcher m = p.matcher(s);
    while (m.find()) {
        System.out.println(m.group());
    }

or via split

String[] split = s.split("\\D");
// for every item in array, if 1 or 3 do something with it..

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solved Separate Int from String on file input [closed]