The fact part of my code is greyed out and it says it cant be used?

package com.example.voltron.myapplication;


import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import java.util.Random;

public class MainActivity extends Activity {

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

        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 v) {
                String fact = "";
                factlabel.setText(fact);
                Random randomGenerator = new Random();
                int randomNumber = randomGenerator.nextInt(3);
           if (randomNumber == 0) {

               fact = "Its going very slow....";