Instead of 0, 1, 2 random numbers. It's showing "Java.until.Random@xxxxxxxx"

public class FunFactsActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_fun_facts);

        //Declare our View variables, and assign the Views from the layout file.
        final TextView factLabel = (TextView) findViewById(R.id.factTextView);
        Button showFactButton = (Button) findViewById(R.id.showFactButton);
        View.OnClickListener listener = new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                  //button was clicked so now update fact label with a new fact.
                  String fact = "";
                //Randomly select a fact.
                Random randomGenerator = new Random(); //Construct new random generator.
                int randomNumber = randomGenerator.nextInt(3);
                 fact = randomGenerator + "";

                //Update the label with our dynamic fact.

                  factLabel.setText(fact);
             }
        };
        showFactButton.setOnClickListener(listener);
    }
}