Why am I getting the null pointer exception when I run my code

moyol.uva. 1 public class HugeInteger {r public int[] array; public int size; public Huge Integer(String val){ REEBOVOU A WNH int size = val.length(); 7/sets length of string to size int [] array = new int [val.length(); //sets Length of string to length of string for (int i = 0; i