index out of bounds

Question

what does index out of bounds mean in the output
and how can i fix it ?

Answer 1

Which code? Could you please provide a link to it so we can look for errors?
But if it's an ArrayIndexOutOfBoundsException you are trying to access a value not inside the array. For example: x is an integer-Array with the length of 5

x[10] is too large, that causes an compile-time-exception.
Runtime-Exception here would be for example:
for(int i = 49; i >= 0; i--) {
x[i] = i;
}