      1  import java.util.Scanner;

      2

      3  /**

      4     This program reads, scales and reverses a sequence of numbers.

      5  */

      6  public class Reverse

      7  {

      8     public static void main(String[] args)

      9     {

     10        double[] values = readInputs(5);

     11        multiply(values, 10);

     12        printReversed(values);

     13     }

     14

     15     /**

     16        Reads a sequence of floating-point numbers.

     17        @param numberOfInputs the number of inputs to read

     18        @return an array containing the input values

     19     */

     20     public static double[] readInputs(int numberOfInputs)

     21     {

     22        System.out.println("Enter " + numberOfInputs + " numbers: ");

     23        Scanner in = new Scanner(System.in);

     24        double[] inputs = new double[numberOfInputs];

     25        for (int i = 0; i < inputs.length; i++)

     26        {

     27           inputs[i] = in.nextDouble();

     28        }

     29        return inputs;

     30     }

     31

     32     /**

     33        Multiplies all elements of an array by a factor

     34        @param data an array

     35        @param factor the value with which element is multiplied

     36     */

     37     public static void multiply(double[] data, double factor)

     38     {

     39        for (int i = 0; i < data.length; i++)

     40        {

     41           data[i] = data[i] * factor;

     42        }

     43     }

     44

     45     /**

     46        Prints an array in reverse order

     47        @param data an array of numbers

     48        @return an array that contains the elements of data in reverse order

     49     */

     50     public static void printReversed(double[] data)

     51     {

     52        // Traverse the array in reverse order, starting with the last element

     53        for (int i = data.length - 1; i >= 0; i--)

     54        {

     55           System.out.print(data[i] + " ");

     56        }

     57        System.out.println();

     58     }

     59  }