No_fact_is_showing_up

here_is_my_code: package david.funfacts;

import android.os.Bundle; import android.support.design.widget.FloatingActionButton; import android.support.design.widget.Snackbar; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.view.View; import android.view.Menu; import android.view.MenuItem; import android.widget.Button; import android.widget.TextView;

import java.util.Random;

public class FunFactsActivity extends AppCompatActivity {

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


    //declare our view variables and assing them the vievs from the layout file.
    final TextView factLabel = (TextView) findViewById(R.id.factLabel);
    Button showFactButton = (Button) findViewById(R.id.showFactButton);
    View.OnClickListener listener = new View.OnClickListener() {
        @Override
        public void onClick(View v) {
        // the button was clicked, so update the fact to show something new


            factLabel.setText("");
        }  // end of onClick()
    };  // end of View.OnClickListener

    showFactButton.setOnClickListener(listener);
}

} i_can't_see_any_fact_when_i_press_the_button

package david.funfacts;

import java.util.Random;

/**

• Created by david on 07-04-2016. */ public class FactBook {

  public String getFact() { String[] facts = { "Ants stretch when they wake up in the morning.", "Ostriches can run faster than horses.", "Olympic gold medals are actually made mostly of silver (about 90%).", "You are born with 300 bones; by the time you are an adult you will have 206.", "It takes about 8 minutes for light from the Sun to reach Earth.", "Some bamboo plants can grow almost a meter in just one day.", "The state of Florida is bigger than England.", "Some penguins can leap 2-3 meters out of the water.", "On average, it takes 66 days to form a new habit.", "Mammoths still walked the earth when the Great Pyramid was being built." };

  String fact = "";
  
  //randomly sellect a fact
  Random randomGenerator = new Random(); //construct a new random number generator
  int randomNumber = randomGenerator.nextInt(facts.length);
  
  fact = facts[randomNumber];
  
  return fact;
  

  }

}