[android-developers] Re: Random() gives same result

I now tryed that and it gave me a java.lang.illegalArgumentException
when it tryes to add cards[0][0]
something more to the code?

On 23 mar, 16:12, Kristopher Micinski <krismicin...@gmail.com> wrote:
>                        if(i>0){
>                                t = r.nextInt(i);
>                        }
>
> should be
>
>                        if(i>=0){
>                                t = r.nextInt(i);
>                        }
>
>
>
> On Fri, Mar 23, 2012 at 11:08 AM, Kristoffer <kris.isak.v...@gmail.com> wrote:
> > Even if this is not Android at least iam using it in a android
> > application ;)
>
> > It seems that you know what you are talking about, do you have the
> > time to point me in the right direction here,
> > is it possible to solve in the way my code works?
>
> > On 23 mar, 15:51, Mark Murphy <mmur...@commonsware.com> wrote:
> >> This has nothing to do with Android. You are not requesting a random
> >> number when i==0.
>
> >> On Fri, Mar 23, 2012 at 10:48 AM, Kristoffer <kris.isak.v...@gmail.com> wrote:
> >> > Hello.
>
> >> > Iam having a problem with the Random()
>
> >> > everything gets random except for cards[0][0] that always ends up with
> >> > = 5
>
> >> > here is the code that i use, anyone have a solution?
> >> > in the code ROW_COUNT = 3 and COL_COUNT = 4
>
> >> > private void loadCards(){
> >> >                try{
> >> >                int size = ROW_COUNT*COL_COUNT;
>
> >> >                ArrayList<Integer> list = new ArrayList<Integer>();
>
> >> >                for(int i=0;i<size;i++){
> >> >                        list.add(new Integer(i));
> >> >                }
>
> >> >                Random r = new Random();
>
> >> >                for(int i=size-1;i>=0;i--){
> >> >                        int t=0;
>
> >> >                        if(i>0){
> >> >                                t = r.nextInt(i);
> >> >                        }
>
> >> >                        t=list.remove(t).intValue();
> >> >                        cards[i%COL_COUNT][i/COL_COUNT]=t%(size/2);
> >> >                }
> >> >            }
> >> >                catch (Exception e) {
> >> >                        Log.e("loadCards()", e+"");
> >> >                }
>
> >> >    }
>
> >> > --
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>
> >> --
> >> Mark Murphy (a Commons Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy
>
> >> _Android Programming Tutorials_ Version 4.1 Available!
>
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