Java Regex Number Validate isNumberForLength(String numStr, int length)

Description

is Number For Length

License

Apache License

Declaration

public static boolean isNumberForLength(String numStr, int length) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.util.regex.Pattern;

public class Main {

    public static boolean isNumberForLength(String numStr, int length) {
        String regex = "[0-9]{" + length + "}";
        return numStr != null && Pattern.matches(regex, numStr);
    }//from   w ww  .j ava  2  s.  c  o m

    public static boolean isNumberForLength(String numStr) {
        if (numStr == null) {
            return false;
        }

        return isNumberForLength(numStr, numStr.length());
    }
}

Related

1. isNumber(String str, String sign)
2. isNumber(String value)
3. isNumber(String value)
4. isNumber(String value)
5. isNumber_Lowerletter_Underline(String str)
6. isNumberLiteral(String s)
7. isNumberOfShownValue(String inputString)
8. isNumeric(String as_argument)
9. isNumeric(String input)