Make the sum of all elements of only one dimension of an array

[Norm]

java.lang.ArrayIndexOutOfBoundsException: 4

One of the indexes you are using is past the end of the array. If you don't know which one, print out all their values so you can see which one it is.
Remember that array indexes start at 0 and go to the array length -1.

[ana_carol]

I don't understand.

[Norm]

I don't understand.

Please explain what part of what I said you do not understand.
Here is a sample of how to get this error: ArrayIndexOutOfBoundsException: 4
int[] anArray = new int[4];
System.out.println(anArray[4]);


Add a println in the sum method that prints out the values of all the variables passed to the method.