import java.util.*;

public class arrayproc
{
   
   static Scanner kb = new Scanner(System.in);
   
   public static void printArray(int[] a)
   {
      int x, len = a.length;

      for (x = 0; x < len; x++)
      {
	 System.out.println("Value at index %d is %d", x, a[x]);
      }
      
   }
   
   public static void main(String[] args)
   {
      int[] array = new int[5];
      int len, x, sum=0;
      double avg;
      
      len = array.length;
      
      // initialize the array to random numbers.
      for (x = 0; x < len; x++)
      {
	 array[x] = (int) (Math.random() * 100 + 1);
      }

      // display array contents.
      printArray(array);
      
      // read data into array.
      for (x = 0; x < len; x++)
      {
	 System.out.print("Enter value for array[" + x + "]: ");
	 array[x] = kb.nextInt();
      }
      
      // display array contents.
      printArray(array);
      
      // sum the array and calculate the average.
      for (x = 0; x < len; x++)
      {
	 sum = sum + array[x];
      }
      avg = sum / len;
      
      System.out.printf("The average of the entered values is %.2f\n",
			avg);
      
   }
}