title: I want the input to be not case sensitive
body: <p>For example, when the user types "September", "SEPTEMBER", "september", "SepTEMber" or anyhow it will be a valid entry as long as the letters are correct. And what is a neater way to write this code( the part where I used "||".)?</p>
  
  <pre><code>import java.io.BufferedReader;
  import java.io.InputStreamReader;
  
  public class Compare {
  
      public static void main(String[] args) {
          String s1 = getInput("Enter a month ");
          if(s1.equals("February")) {
              System.out.println("It's time to go to the Disneyland !");
              String s2 = getInput("Enter another month: ");
              if(s2.equals("February")) {
                  System.out.println("You already won a Disneyland ticket! Try       another month.");
                  String s3 = getInput("Enter another month: ");
                    if(s3.equals("January") || 
                       s3.equals("March") || 
                       s3.equals("April") || 
                       s3.equals("July") || 
                       s3.equals("May") || 
                       s3.equals("September") || 
                       s3.equals("October") || 
                       s3.equals("November") || 
                       s3.equals("Aguest") || 
                       s3.equals("July") || 
                       s3.equals("December")) {
                       System.out.println("You will go to Paris");
                    }else {
                       String s4 = getInput("Leave your name and phone number. We will call you back. ");
                       System.out.println("Thanks for visiting! Goodbye !");
                     }    
                }
           }
       }
      private static String getInput(String prompt) {
          BufferedReader stdin = new BufferedReader(
                  new InputStreamReader(System.in));
          System.out.print(prompt);
          System.out.flush();
  
          try {
              return stdin.readLine();
          } catch (Exception e) {
              return "Error: " + e.getMessage();
            }
  
       }
  
  }
  </code></pre>