//TODO: Replace this with your own logic
private boolean isEmailValid(String email) {
        //TODO: Replace this with your own logic
        return email.contains("@");
    }
private boolean isEmailValid(String email) {
//TODO: Replace this with your own logic
return email.contains("@");
}
private boolean isEmailValid(String email) {
//TODO: Replace this with your own logic
return email.contains("@");
}
private boolean isEmailValid(String email) {
//TODO: Replace this with your own logic
return email.contains("@");
}