Java Regex Number Validate isNumericAndCanNull(String src)

Description

is Numeric And Can Null

License

Apache License

Declaration

public static boolean isNumericAndCanNull(String src) 

Method Source Code

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

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

public class Main {

    public static boolean isNumericAndCanNull(String src) {
        Pattern numericPattern = Pattern.compile("^[0-9]+$");
        if (src == null || src.equals(""))
            return true;
        boolean return_value = false;
        if (src != null && src.length() > 0) {
            Matcher m = numericPattern.matcher(src);
            if (m.find()) {
                return_value = true;
            }//from  w  ww  .  j  av a2 s . c  om
        }
        return return_value;
    }
}

Related

1. isNumeric(String str)
2. isNumeric(String str)
3. isNumeric(String text)
4. isNumeric(String value)
5. isNumericAndCanNull(String src)
6. isNumString(String txt)
7. parseNumber(String in)
8. parseNumber(String input)
9. parseNumber(String input)