Validate Email with regular expression

RegexEmail.java

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
*   Give true is all condition matches, otherwise false.
*   @param  String 
*   @return boolean
*/
private boolean validateEmail(String email){

    String rEmail = "^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$";
    Pattern pattern = Pattern.compile(rEmail);
    Matcher matcher = pattern.matcher(password); 
    return matcher.matches();

}