12. Computing the average example

• Code that computes the average of the array of prices

  
      double sum = 0.0;
      for (int i = 0; i < prices.length; i++) 
      {
         sum += prices[i];
      }
      double average = sum/prices.length;
  
  

• Another way to compute the average in a for loop

  
      double sum = 0.0;
      for (int i = 0; i < prices.length; sum += prices[i++]);
      average = sum / prices.length;