Question

I keep getting the ArrayIndexOutOfBoundsException in the line that says
winVals[i] = rand, but i have no idea why.

int valueCount = 5;
int theLimit = 5;
int[] winVals = new int[valueCount];
Random r = new Random();
int rand = 0;
for(int i= 0; i < winVals.length; i++)
{
    rand = r.nextInt(theLimit - 1) +1;
    if(i == 0)
    {
        winVals[0] = rand;
    }
    else if (i > 0)
    {
        for (int j = 0; j < winVals.length; j++)
        { 
           if( winVals[j] == rand)
           {
              i--;
           }      
           else
           {
               winVals[i] = rand;
           }
        }
    }
}
for(int i=0; i < valueCount; i++)
{
    System.out.println(winVals[i]);
}

Answer 1

for (int j = 0; j < winVals.length; j++)
{ 
   if( winVals[j] == rand)
       i--;
   else
   {
       winVals[i] = rand;
   }
}

In this section you’re looping through values of j and decreasing i, but you’re not bothering to check if i is still valid. What if i is 1 and you decrease it twice?