Code not working after adding a couple of facts

import android.content.DialogInterface;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class FunFactsActivity extends AppCompatActivity {
    // Declare our view variables
    private TextView mFactTextView;
    private Button mShowFactButton;

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

        // Asign the views from the layout file to the corresponding variables
        mFactTextView = (TextView) findViewById(R.id.factTextView);
        mShowFactButton = (Button) findViewById(R.id.showFactButton);

        View.OnClickListener listener = new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                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.",
                        "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.",
                        "Banging your head against a wall burns 150 calories an hour.",
                        "In the UK, it is illegal to eat mince pies on Christmas Day.",
                        "When hippos are upset, their sweat turns red.",
                        "A flock of crows is known as a murder.",
                        "“Facebook Addiction Disorder” is a mental disorder identified by Psychologists.",
                        "The average woman uses her height in lipstick every 5 years",
                        "29th May is officially “Put a Pillow on Your Fridge Day“.",
                        "Cherophobia is the fear of fun.",
                        "Human saliva has a boiling point three times that of regular water.",
                        "If you lift a kangaroo’s tail off the ground it can’t hop.",
                        "Hyphephilia are people who get aroused by touching fabrics.",
                        "Billy goats urinate on their own heads to smell more attractive to females.",
                        "The person who invented the Frisbee was cremated and made into frisbees after he died.",
                        "During your lifetime, you will produce enough saliva to fill two swimming pools.",
                        "Polar bears can eat as many as 86 penguins in a single sitting (if they lived in the same place).",
                        "King Henry VIII slept with a gigantic axe beside him.",
                        "Bikinis and tampons invented by men.",
                        "An eagle can kill a young deer and fly away with it.",
                        "The world's first handheld mobile phone's cost was $3,995.",
                        "Applesauce was the first food eaten in space by an american astronaut.",
                        "A bat can eat 3,000 insects in one night."
                };


                // The button was clicked so update the fact text view with a new fact
                String fact = "";
                // Randomly select a fact
                Random randomGenerator = new Random();
                int randomNumber = randomGenerator.nextInt(facts.lenght);
                fact = facts[randomNumber];

                // Update the screen with our dinamic fact
                mFactTextView.setText(fact);

            }
        };
        mShowFactButton.setOnClickListener(listener);
    }

import android.content.DialogInterface;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class FunFactsActivity extends AppCompatActivity {
    // Declare our view variables
    private TextView mFactTextView;
    private Button mShowFactButton;

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

        // Asign the views from the layout file to the corresponding variables
        mFactTextView = (TextView) findViewById(R.id.factTextView);
        mShowFactButton = (Button) findViewById(R.id.showFactButton);

        View.OnClickListener listener = new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                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.",
                        "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.",
                        "Banging your head against a wall burns 150 calories an hour.",
                        "In the UK, it is illegal to eat mince pies on Christmas Day.",
                        "When hippos are upset, their sweat turns red.",
                        "A flock of crows is known as a murder.",
                        "“Facebook Addiction Disorder” is a mental disorder identified by Psychologists.",
                        "The average woman uses her height in lipstick every 5 years",
                        "29th May is officially “Put a Pillow on Your Fridge Day“.",
                        "Cherophobia is the fear of fun.",
                        "Human saliva has a boiling point three times that of regular water.",
                        "If you lift a kangaroo’s tail off the ground it can’t hop.",
                        "Hyphephilia are people who get aroused by touching fabrics.",
                        "Billy goats urinate on their own heads to smell more attractive to females.",
                        "The person who invented the Frisbee was cremated and made into frisbees after he died.",
                        "During your lifetime, you will produce enough saliva to fill two swimming pools.",
                        "Polar bears can eat as many as 86 penguins in a single sitting (if they lived in the same place).",
                        "King Henry VIII slept with a gigantic axe beside him.",
                        "Bikinis and tampons invented by men.",
                        "An eagle can kill a young deer and fly away with it.",
                        "The world's first handheld mobile phone's cost was $3,995.",
                        "Applesauce was the first food eaten in space by an american astronaut.",
                        "A bat can eat 3,000 insects in one night."
                };


                // The button was clicked so update the fact text view with a new fact
                String fact = "";
                // Randomly select a fact
                Random randomGenerator = new Random();
                int randomNumber = randomGenerator.nextInt(facts.lenght);
                fact = facts[randomNumber];

                // Update the screen with our dinamic fact
                mFactTextView.setText(fact);

            }
        };
        mShowFactButton.setOnClickListener(listener);
    }
}