import java.util.Arrays;

class Rainfall2 {
    public static void main (String arg[]) 
    {
         double dailyRainFall[] = {12.3, 13.5, 4.2, 2.4, 1.1, 0, 10.8};

	 System.out.println(dailyRainFall);
	 System.out.println(Arrays.toString(dailyRainFall));

         System.out.println ("Average rain fall:"+ dblAverage(dailyRainFall) + " mm");
    }

    static double dblAverage (double[] dblArray)
    {
         double average = 0;
	 int len = dblArray.length;
         for (int i=0; i<len; i++) 
         {     average += dblArray[i]; }
         average /= len;
	 return average;
    }
}