Android, Can I use putExtra to pass multiple values

Question

I want to pass two values to another activity can I do this with putExtra or do I have to do it a more complicated way, which it seems from my reading. E.g.. can something l

Answer 1

Putting extra values in class

public class MainActivity extends Activity {
        public final static String USERNAME = "com.example.myfirstapp.MESSAGE";
        public final static String EMAIL = "com.example.myfirstapp.EMAIL";

public void registerUser(View view) {
        Intent intent = new Intent(this, DisplayMessageActivity.class);
        EditText userNameTxt = (EditText) findViewById(R.id.editText1);
        EditText emailTxt = (EditText) findViewById(R.id.editText2);
        String userName = userNameTxt.getText().toString();
        String email = emailTxt.getText().toString();
        intent.putExtra(USERNAME, userName);
        intent.putExtra(EMAIL,email);
        startActivity(intent);

    }

Reading extra values from another class

public class DisplayMessageActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        Intent intent = getIntent();
        String user = intent.getStringExtra(MainActivity.USERNAME);
        String email = intent.getStringExtra(MainActivity.EMAIL);