Question

In my project I give email address to send the mail in a text box. I can give either a single email address or a multiple email address separated by commas. Is there any regular expression for this situation. I used the following code and its check for single email address only.

public static boolean isEmailValid(String email){  

            boolean isValid = false;  
        String expression = "^[\\w\\.-]+@([\\w\\-]+\\.)+[A-Z]{2,4}$";  
        CharSequence inputStr = email;  

        Pattern pattern = Pattern.compile(expression,Pattern.CASE_INSENSITIVE);  
        Matcher matcher = pattern.matcher(inputStr);  
        if(matcher.matches()){  
        isValid = true;  
        }  
        return isValid;  
        } 

Answer 1

You can split your email-var on a “,”, and check for each emailaddress you got 🙂