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Thread: I need help explaining the output.

  1. #1
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    Default I need help explaining the output.

    Hi! Well, I could really use some help with explaining this code output.

    Here's the code:

    class Uppgift2 {
    public static void main(String[]args) {
    Adda[]alla=new Adda[5];
    for (int x=0; x<alla.length; x++)
    if (x==1 || x==3)
    alla[x]=new Dokee();
    else alla[x]=new Bjubb();

    for (int x=0; x<alla.length; x++)
    alla[x].skriv();
    }
    }

    class Adda {
    private String ord="Lire";
    private int antal=2;

    public Adda(String ord, int antal) {
    this.ord=ord;
    this.antal=antal;
    }
    public Adda() {
    ord="Pesetas";
    }
    public void skriv() {
    for (int x=0; x<antal; x++)
    System.out.print(ord);
    System.out.println();
    }
    }
    class Bjubb extends Adda {
    private static String[] ord={"Kronor","Dollar","Sedlar","Pengar"};
    private static int pos=0;

    public Bjubb() {
    super(ord[pos++], pos);
    }
    }
    class Dokee extends Adda {
    private String sak="Euro";

    public void skriv(){
    super.skriv();
    System.out.println(sak);
    }
    }

    The output is supposed to look like this:

    Kronor
    PesetasPesetas
    Euro
    DollarDollar
    PesetasPesetas
    Euro
    SedlarSedlarSedlar

    Can anyone explain to me why the output is the way it is? I can figure out some parts, but I'm still a "newbie" when it comes to Java. Thankful for every bit of advice I can get.


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: I need help explaining the output.

    Please edit your post and wrap your code with
    [code=java]
    <YOUR CODE HERE>
    [/code]
    to get highlighting and preserve formatting.


    You forgot to post the program's current output.
    If you don't understand my answer, don't ignore it, ask a question.

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