Source of Exercise.java

Structures and functions

public class Exercise

  1: 
  2: 
  3: import java.util.*;
  4: 
  5: public class Exercise
  6: {
  7:     public static void main(String[] args)
  8:     {
  9:         double[] a = new double[20];
 10:         int index;
 11:        Scanner keyboard = new Scanner(System.in);
 12:        System.out.println("Enter 20 numbers:");
 13:         for (index = 0; index < a.length; index++)
 14:             a[index] = keyboard.nextDouble( );
 15:         System.out.println(
 16:            "The numbers and differences from last number are:");
 17:         for (index = 0; index < a.length; index++)
 18:             System.out.println(a[index]
 19:              + " differs from last by "
 20:              + (a[a.length - 1] - a[index]));
 21:     }
 22: }