Java Regex Number Validate isNumericAndCanNull(String src)

Description

is Numeric And Can Null

License

Open Source License

Declaration

public static boolean isNumericAndCanNull(String src) 

Method Source Code

//package com.java2s;

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 w  w  .jav a2 s .com

        return return_value;
    }

    public static boolean equals(String s1, String s2) {
        if ((isEmpty(s1)) && (isEmpty(s2)))
            return true;
        if ((!(isEmpty(s1))) && (!(isEmpty(s2))))
            return s1.equals(s2);

        return false;
    }

    public static boolean isEmpty(String s) {
        return ((s == null) || ("".equals(s)));
    }

    public static String isEmpty(String s, String result) {
        if ((s != null) && (!(s.equals(""))))
            return s;

        return result;
    }
}

Related

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