Check if string is number in android

Use string.matches method which accepts a regex as an argument.

if(string.matches("\\d+(?:\\.\\d+)?")){System.out.println("Matches");}else{System.out.println("No Match");}

android string numbers

If you are looking for a way to just check if the string contains digits (so check for integer values), use the native TextUtils.isDigitsOnly(CharSequence str).

android string numbers

If you are inflating those textviews from xml you can just use:

android:inputType="number"

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