Enhanced For Loop Exception [duplicate]

Answer 1

for(int i : numbers)
{
     System.out.print(numbers[i] + ", ");
}

i here is the elements in the array, not the indexes. It could be bigger than numbers.length.

For example, if numbers = {1,2,3,9} then i will be 1, 2, 3, 9. But its length is 4, so when you loop on the elements inside it, you're trying to do numbers[9] which exceeds its size.

You probably want to System.out.print(i + ", ");