Java Email Validate isEmail(String str, boolean nullCheck)

Description

is Email

License

Apache License

Declaration

public static boolean isEmail(String str, boolean nullCheck) 

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 isEmail(String str, boolean nullCheck) {
        String checkPattern = "^([A-Za-z0-9_\\-\\.'])+@([A-Za-z0-9_\\-\\.])+\\.([A-Za-z]{2,6})$";

        if (nullCheck == false || isRequired(str)) {
            return isRegex(str, checkPattern, nullCheck);
        } else {//ww  w .j  ava2  s  .com
            return false;
        }
    }

    public static boolean isRequired(String str) {
        if (str == null || str.trim().length() == 0) {
            return false;
        }

        return true;
    }

    public static boolean isRegex(String str, String regex) {
        return isRegex(str, regex, false);
    }

    public static boolean isRegex(String str, String regex, boolean nullCheck) {
        if (nullCheck == false || isRequired(str)) {
            Pattern pattern = Pattern.compile(regex);
            Matcher matcher = pattern.matcher(str);

            return matcher.matches();
        } else {
            return false;
        }
    }
}

Related

1. isEmail(String str)
2. isEmail(String str)
3. isEmail(String str)
4. isEmail(String str)
5. isEmail(String str)
6. isEmail(String string)
7. isEmail(String string)
8. isEmail(String text)
9. isEmail(String val)