Best implementation for an isNumber(string) method

Question

In my limited experience, I\'ve been on several projects that have had some sort of string utility class with methods to determine if a given string is a number. The idea h

Answer 1

For long numbers use this: (JAVA)

public static boolean isNumber(String string) {
    try {
        Long.parseLong(string);
    } catch (Exception e) {
        return false;
    }
    return true;
}