How to check if an email address is valid?

Question

Following is the code i am using:

Its always giving me output "Invalid email address"

BufferedReader br= new BufferedReader(new InputStreamReader(System.in));
String name="";
do
{
    System.out.println("Email:");
    String email= br.readLine();
    if(!name.matches("^[a-zA-Z0-9]+@[a-zA-Z0-9]+(.[a-zA-Z]{2,})$"))
    System.out.println("Invalid email address");
    else
        break;  
}while(true);

You are getting email in email and matching name in if condition. — Shivam, Oct 30 '15 at 10:29
Possible duplicate of [What is the best Java email address validation method?](http://stackoverflow.com/questions/624581/what-is-the-best-java-email-address-validation-method) — Autar, Oct 30 '15 at 10:48

score 5 · Answer 1 · answered Oct 30 '15 at 10:34

5

Alternatively you can use apache validator

String email; //set the String...
System.out.println(EmailValidator.getInstance().isValid(email));

answered Oct 30 '15 at 10:34

nafas

5,283
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score 3 · Answer 2 · answered Oct 30 '15 at 10:29

3

if(!name.matches("^[a-zA-Z0-9]+@[a-zA-Z0-9]+(.[a-zA-Z]{2,})$"))

should be

if(!email.matches("^[a-zA-Z0-9]+@[a-zA-Z0-9]+(.[a-zA-Z]{2,})$"))

answered Oct 30 '15 at 10:29

sidgate

14,650
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score 1 · Answer 3 · answered Oct 30 '15 at 10:45

1

Probably you should call

email.matches("^[a-zA-Z0-9]+@[a-zA-Z0-9]+(.[a-zA-Z]{2,})$")

since name is constantly set to an empty string.

answered Oct 30 '15 at 10:45

Číma

11
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How to check if an email address is valid?

3 Answers3