Help! facts.length is giving me a red error message once I type it in Android Studio.

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

    // Declare our view variables and assign views from the layout file
    final TextView factlabel = (TextView) findViewById(R.id.textView3);
    Button showFactButton = (Button) findViewById(R.id.button);
    View.OnClickListener listener = new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            String[] facts = {
                              "Quote 1",
                              "Quote 2",
                              "Quote 3",
                              "Quote 4",
                              "Quote 5",
                              "Quote 6",
                              "Quote 7",
                              "Quote 8",
                              "Quote 9",
                              "Quote 10"};
        }

        //The button was clicked
            String Fact = "";
        // Randomly Choose a fact
            Random randomGenerator = new Random(); //Generates new random number
            int randomNumber =randomGenerator.nextInt(facts.length);

            fact = Facts [randonNumber];

             // Update fact label

            factlabel.setText(Fact);
        }
    };
    showFactButton.setOnClickListener(listener);