How to validate 'email' using Regular Expression in Java with NetBeansIDE

How to validate 'email' using Regular Expression in Java with NetBeansIDE

1. Open NetBeansIDE

2. In your project Make a java form(e.g. JFrame Form)

   2.1 Design this Form with one JTextField and a button in it.

3. Make Validate.java class
   
   3.1 In this class make a static method with code:

       public static boolean validateEmail(String email) {                                        
       boolean status=false;   
       String EMAIL_PATTERN =
        "^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@"
        + "[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$";
       Pattern pattern = Pattern.compile(EMAIL_PATTERN);
       Matcher matcher=pattern.matcher(email);
       if(matcher.matches())
       {
           status=true;
       }
       else{
           status=false;
       }
           return status;
           
    }

4. Right Click on Button and Goto Events~Action~actionPerformed

   4.1 In this method Call the 'validateEmail' method of Validate class           as:
      
       boolean status=Validate.validateEmail(jTextField1.getText());
       if(status){
           jLabel2.setText("Email Valid");
       }else{
           jLabel2.setText("Not Valid Email");
       }

5. Run your project with JForm.

6. Check the Validation.

7. Finish

Thank You :)

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