Chatbot

import java.util.*;

public class Chatbot{

  public static void main(String []args){

    Scanner input = new Scanner(System.in);
    System.out.println("Chatbot");
    System.out.println("Can I ask you a question?");
    String answer = input.nextLine();
    answer = answer.toUpperCase();
    if (answer.equals("YES") || answer.equals("Y"))
      System.out.println("Ok, what is your favorite animal?");
    else if (answer.equals("NO") || answer.equals("N"))
      System.out.println("Oh well, what is your favorite animal?");
    else
      System.out.println("You can't answer a yes or no question? Well try this one, what is your favorite animal?");
    String answer2 = input.nextLine().toUpperCase();
    System.out.println(answer2 + "!");
    System.out.println("Ok. What is your favorite food?");
    String answer3 = input.nextLine().toUpperCase();
    if (answer3.equals("PASTA"))
      System.out.println("You love pasta too?!? AWESOME!!!");
    else
      System.out.println("Oh, you like" + answer3 + "? That/'s cool I guess" );
    System.out.println("Ok. Another question. What is your favorite book?");
    String answer4 = input.nextLine().toUpperCase();
    System.out.println(answer4 + " sounds like a great book. I should read it. Thanks for the recommendation.");
  }
}