Array OutOfBound Error

Question

public class UglyNum
{

Scanner inp = new Scanner(System.in);
int num,count=0;

void askNum()
{
System.out.println("Enter any Number");
num = inp.nextInt();
}

int Arr[] = new int[num];

void fact()
{
for(int i = 2; i <= num; i++)
{
if(num%i==0)
{
System.out.println(i);
Arr[count]=i; <------------Getting an error here(OutOfBoundation)
count++;
}
}
}
}

class ABC{ <-----------------Main Clas

Answer 1

For

int Arr[] = new int[num];

where num is 0, your array has no space allocated to it.

Answer 2

How num is 0? I have made a function for taking the value from the User..The size of the array should be the number entered by the user