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Thread: Java coding (Assignment)

  1. #1
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    Default Java coding (Assignment)

    I am currently coding for my assignment but i am having this problem.

    Add new item
    ============
    Category ( 1 - Manga 2 - Anime 3-Video Game) : 
     
    1
     
    (blank line) 
     
    Title :

    ........
    There is a blank line before the input of next data and i am wondering on how to remove the blank line.

    Below is my code :

    System.out.print("Category ( 1 - Manga 2 - Anime 3 - Video Game) : "); 
      int option = input.nextInt();
      while(!matching)
      {
         if ((option == 1) || (option == 2) || (option == 3))
         {
            category[itemCount] = categoryTypes[input.nextInt()-1];
            matching = true;
         }
         else
         {
            System.out.println("Invalid category , Please enter again");
            System.out.print("Category ( 1 - Manga 2 - Anime 3-Video Game) : "); 
            option = input.nextInt();
         }
      }
      input.nextLine();
      System.out.print("Title : ");
      titles[itemCount] = input.nextLine();
    }


  2. #2
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    Default Re: Java coding (Assignment)

    It most likely depends upon where and when you call the Scanner class for user input and what the user enters.
    Improving the world one idiot at a time!

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    Default Re: Java coding (Assignment)

    i don`t quite understand what you meant.

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    Default Re: Java coding (Assignment)

    Welcome to the forum! Thanks for taking the time to learn how to post code correctly. If you haven't already, please read this topic to learn other useful info for new members.

    I don't understand the problem. Show a sample run (copy it from the console and paste into a post) that has the undesired blank line.

    Ooops. I see that now in Post #1. Let me play with it.

    I think it's being caused by this line:

    category[itemCount] = categoryTypes[input.nextInt()-1];

    Why are you getting more input? Did you mean instead:

    category[itemCount] = categoryTypes[option-1];

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