Get number from string (like ""Wintertodt's Energy: 35%") using regex

[distraction 61]

Someone asked about this in discord earlier today, and I helped them get it working. I figured I would post it here in case anyone else has the same issue. Basically, he needed to get the % value from the string "Wintertodt's Energy: 35%". To do this, I used a regular expression to grab only the numbers from the string, and then used `parseInt` on the result. Here is an example on how to do this.

        // this should be replaced with whatever code fetches the string
        String str = "Wintertodt's Energy: 35%";
        // create the regex pattern to find numbers
        Pattern ints = Pattern.compile("\\d+");
        // run the regex pattern on the string we want to parse the numbers from
        Matcher makeMatch = ints.matcher(str);
        makeMatch.find();

        // set the result
        String result = makeMatch.group();
        // this should print 35 in your console (note that 35 is actually still a string at this point)
        log(result);
        // parse the number from the result string to convert it to the right data type (int)
        int integerValue = Integer.parseInt(result);
        // this should print 35 in your console (note that 35 is an int here, which is why we have to do integerValue+"" to get it to log since log takes in a string)
        log(integerValue+"");

Once you have `integerValue`, you can do things like `if (integerValue > 50)` or `if (integerValue == 100)`. Let me know if you have any questions or suggestions on an easier way to do this.

 

Here are the required imports for the code above

import java.util.regex.Matcher;
import java.util.regex.Pattern;

[Fictional 1]

​Thanks a lot distraction. This helped me out tremendously

[distraction 61]

​Thanks a lot distraction. This helped me out tremendously

No problem man, I'm glad I was able to help