private void createValidationForm() { Validate emailField = new Validate(editTextEmail); Validate passwordField = new Validate(editTextPassword); emailField.addValidator(new NotEmptyValidator(LoginActivity.this)); emailField.addValidator(new EmailValidator(LoginActivity.this)); passwordField.addValidator(new NotEmptyValidator(LoginActivity.this)); validationForm = new Form(); validationForm.addValidates(emailField); validationForm.addValidates(passwordField); }