Java solution with regex


  • 0
    H

    Code to validate by regex if given string is a numeric

    class Solution {
        public boolean isNumber(String s) {
            if (s == null || s.trim().length() == 0) return false;
            return s.trim().matches("^(-|\\+)?\\d*(\\d+|\\d+\\.|\\.\\d+)\\d*(e(\\+|-)?\\d+)?$");
        }
    }
    

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