Answer to Question #286060 in Java | JSP | JSF for Hamza

Question

Task #10: Using Arrays and Methods

In this task, you are being asked to write methods that manipulate arrays in Java.

Write a method that returns the reverse of a given integer array.

You may use the following header for this method:

static int[] reverseArray(int[] array)

For example, suppose that the array has 10 values: 10 9 8 7 6 5 4 3 2 1

The method will return an array which would contain the values: 1 2 3 4 5 6 7 8 9 10

NOTE: Declare and initialize the array without taking the input from user.

4. Create a program called ArrayReverseLab1.java.

5. Create appropriate variables and assign values using a Scanner object.

6. Correctly display appropriate messages.

Answer 1

import java.util.Arrays;

public class ArrayReverseLab1 {
    static int[] reverseArray(int[] array) {
        int[] reversed = new int[array.length];
        for (int i = 0; i < array.length; i++) {
            reversed[array.length - 1 - i] = array[i];
        }
        return reversed;
    }

    public static void main(String[] args) {
        int[] array = {10, 9, 8, 7, 6, 5, 4, 3, 2, 1};
        System.out.println(Arrays.toString(reverseArray(array)));
    }
}