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  1. class Ideone {
  2. 	public static void main (String[] args) {
  3. 		try {
  4. 		IterateAndSum(null);
  5. 		} catch (NullPointerException e) {
  6. 			e.printStackTrace(System.out);
  7. 		}
  8. 		System.out.println(IterateAndSum(
  9. 			new int[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}));
  10. 		System.out.println(IterateAndSum(
  11. 			new int[]{ -1, -2, -3, -4, -5, -6, -7, -8, -9 }));
  12. 		System.out.println(IterateAndSum(
  13. 			new int[]{ 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80}));
  14. 	}
  15.  
  16.     public static int IterateAndSum(int[] arr) {
  17.         int sum=0;
  18.         for (int i:arr) {
  19.             sum=sum+i;
  20.         }
  21.         return sum;
  22.  
  23.     }
  24. }
Success #stdin #stdout 0.06s 32532KB
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stdin
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Standard input is empty
stdout
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java.lang.NullPointerException
	at Ideone.IterateAndSum(Main.java:18)
	at Ideone.main(Main.java:4)
66
-45
1095
https://ideone.com/OlCgqd
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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