public class SumArray1
{
   public static void main(String[] args)
   {
      double[] a = { 2.3, 3.4 , 4.5, 5.6, 6.7, 7.8, 8.9 }; // 7 elements

      int i;            // Array index
      double sum;       // Running sum

      sum = 0.0;

      for ( i = 0 ; i < a.length ; i++ )
      {
         sum = sum + a[i];    // Add a[i] to the running sum
                              // Common error: sum = a[i]
                              // This will store a[i] into sum
      }

      System.out.println( sum );
   }
}