Question

I am working on this NumberList class which represents a list of integers. The NumberList object has just one instance variable values, which is a reference to an array of int values. One of the methods I need to implement is supposed to return the sum of all entries in the list.

Here is my attempt at it:

  public long getTotal() 
{

        long total = 0;

        for (int i = 0; i < total; i++)
        {
            total += values[i];

        }

        return total;
    }

Answer 1

Your for loop is going up to total, but that’s (probably) not the size of your array, it’s values.length.