Problem

Lets start off with a small problem this week.
Write a method that takes an array of integers are returns the sum. This might be useful for upcoming problems.

More with Arrays

Solution

First we are going to need our method header. We know that it takes an array of integers and returns an integer.

public static int sumArray(int[] myArray)
{
}

We'll only need one variable at the top of our method. This is the our running sum. We will initialize this variable to 0.

public static int sumArray(int[] myArray)
{
  int sum;
  sum = 0;
  return sum;
}

Now we need to iterate over all of our elements and add them up.

Code

Solution Code

public static int sumArray(int[] myArray)
{
  int sum;

  sum = 0;

  for(int counter = 0;counter < myArray.length();counter++)
  {
    sum += myArray[counter];
  }

  return sum;
}