factLabel is highlighted in pink

Hi my factLabel is highlighted in pink and I can't convert the randomNumbers into strings

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 files final TextView factLabel = (TextView) findViewById(R.id.factTextView); final Button showFactButton = (Button) findViewById(R.id.showFactButton); final View.OnClickListener listener = new View.OnClickListener() { @Override public void onClick(View view){ // the button was clicked, it will update the with some new facts String fact = ""; // Randomly select a fact Random randomGenerator = new Random(); //construct a new Random generator int randomNumber = randomGenerator.nextInt(3); /* convert randomNumber in a text fact * 0 = Ants stretch when they wake up in the morning * 1 = Ostriches can run faster than horses * 2 = Olympic Gold metals are usually made mostly of silver */ // if randomNumber equals to zero then if (randomNumber == 0) { // set fact equals to ants fact fact = "Ants stretch when they wake up in the morning"; }

            else if (randomNumber == 1) {
                fact = "Ostriches can run faster than horses";
            }

            else if (randomNumber == 2) {
                fact = "Olympic Gold metals are usually made mostly of silver";
            }

            else {
                fact = "Sorry there was an error";
            }
            // update the label with our dynamic fact
            factLabel.setText(fact);
        }
    };
    showFactButton.setOnClickListener(listener);