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javaregexemail-validation

Validating email format in java

I need to validate an email pattern which starts with an alphabat and ends with @gmail.com. Following is my code.

 public static boolean isValidEmail(String email)
 {
    String endPattern = "@gmail.com";

    if(null == email){
        return false;
    }   
    if(email.length()<10){
        return false;
    }   
    if(!email.endsWith(endPattern)){
        return false;
    }
    String[] strArr = email.split(endPattern);  
    String mailId = strArr[0];  
    if(!Character.isLetter((mailId.charAt(0)))){
        return false;
    }   
    return true;
  }

Is there a better way to acheive this? A regex or a better code?

Solution

  • Use a regex

    public static boolean isValidEmail(String email)
{
    if (email != null)
    {
        Pattern p = Pattern.compile("^[A-Za-z].*?@gmail\\.com$");
        Matcher m = p.matcher(email);
        return m.find();
    }
    return false;
}