Question

java code

Write a method called reverse that takes an array of integers as an input and returns the same values in reverse order as the output. Test your method in the main.

Answer 1

Reversing an array using Java

Answer:

          Below the method uses the function java.util.Collections.reverser(List list) method. This method reverses the elements in the specified list. At first we convert the array into a list by using java.util.Arrays.asList(array) and then we reverse the list.

import java. util.*;

public class reverseArray {

             /*function to reverse the elements in an array*/

            static void reverse(Integer array[])

            {

                        /*Converting the array into list and reversing the elements*/

                          Collections.reverse(Arrays.asList(array)) ;

                              /*printing the reversed list*/

                          System.out.println(Arrays.asList(array) ;

             }

/*calling main function*/

             public static void main(String[] args)

             {

                         Integer[] array = {2, 4, 5, 7, 8, 9, 3, 10} ;

                             /*calling reverse method*/

                         reverse(array) ;

              }

}

Output:

[10, 3, 9, 8, 7, 5, 4 ,2]