title: java loop, if else
body: <p>I know this is something very simple, however, I've only been programming for a couple months so my brain just fog's out sometimes, and I need help with a while loop with nested else if statements. The problem my loop is continuous because the user is never given the chance to enter in their choice (which -1 stops the loop). How can I change the loop so that it operates by asking user to enter a choice (1-4, or -1 to quit) </p>
  
  <p>Please Any help is appreciated. I know it's something simple, I've searched thorugh previous forum discussions but I can't seem to make it work. </p>
  
  <pre><code>//create new scanner object 
      Scanner userInput = new Scanner (System.in);
      int end = 0;
      //find out what user wants to do with address book
      while (end != -1)
      {
          System.out.println("  ");
          System.out.println("  ");
          System.out.println("----------------------------");
          System.out.println("What would you like to do with your address book? ...");
          System.out.println("----------------------------");
          System.out.println("Add new         [Enter 1]");
          System.out.println("Delete existing [Enter 2]");
          System.out.println("Edit existing   [Enter 3]");
          System.out.println("Search for      [Enter 4]");
          System.out.println("EXIT            [Enter -1]");
      }
  
      if (userInput.hasNext() &amp;&amp; (userInput.nextInt() == 1)) 
      {
          AddressBookProcessor.addContact();
      }
      else if (userInput.hasNext() &amp;&amp; userInput.nextInt() == 2)
      {
          AddressBookProcessor.deleteContact();
      }
      else if (userInput.hasNext() &amp;&amp; userInput.nextInt() == 3)
      {
          AddressBookProcessor.editContact();
      }
      else if (userInput.hasNext() &amp;&amp; userInput.nextInt() == 4)
      {
          AddressBookProcessor.findContact();
      }
      else if (userInput.nextInt() != 1 || userInput.nextInt() != 2 
                       || userInput.nextInt() != 3 || userInput.nextInt() != -1)
      {
          System.out.println("Please enter a valid input");
          end = -1;
      }
  
  
  
  
  }
  </code></pre>