How I can make the input control verify an email address is of valid form?

Question

I have a form and among the fields to fill is the mail I want to make a control so that the input address is consistent with the standard mails

responsableTechnique.setMail(mailResponsable.getText());

Answer 1

You can with regex, example :

public static void main(String[]args){
    String regex = "^[_a-z0-9-]+(\\.[_a-z0-9-]+)*@[a-z0-9-]+(\\.[a-z0-9-]+)+$";

    Pattern.matches(regex,"[email protected]"); //True
    Pattern.matches(regex,"[email protected]"); //True
    Pattern.matches(regex,"testtest.fr"); //False
    Pattern.matches(regex,"test.test@testfr"); //False
    Pattern.matches(regex,"test@test."); //False
    Pattern.matches(regex,"test@[email protected]"); //False

}

So for your example :

String regex = "^[_a-z0-9-]+(\\.[_a-z0-9-]+)*@[a-z0-9-]+(\\.[a-z0-9-]+)+$";
    String mail = mailResponsable.getText();

    if(Pattern.matches(regex,mail)) responsableTechnique.setMail(mail);