Java - Iterate Array in Reverse Order

// Java program to iterate array in
// reverse order using for loop
public class GFG {

    public static void main(String[] args) {

        // taking integer array
        int[] n = { 10, 20, 30, 40, 50 };

        System.out.println("");

        // using for loop to print array 
        // in reverse order
        for (int i = n.length - 1; i >= 0; i--) {
            System.out.print(n[i] + " ");
        }
    }
}

// Java Program to iterate over an array
// in reverse order using enhanced for loop
import java.util.*;
public class Main {

    public static void main(String[] args) {

        // Array initialization
        Integer[] arr = {10, 20, 30, 40, 50};

        // Reversing the array
        Collections.reverse(Arrays.asList(arr));

        // Iterating over the reversed array
        for (int n : arr) {

            System.out.print(n + " ");
        }
    }
}

// Java program to iterate over an array
// in reverse order using while loop
public class Main {

    public static void main(String[] args) {

        // Array initialization
        int[] arr = {10, 20, 30, 40, 50};

        int i = arr.length - 1;

        // Iterating over the array in reverse order
        while (i >= 0) {

            // Accessing each element of the array
            System.out.print(arr[i] + " ");
          
            i--;
        }
    }
}

// Java Program to iterate over an array
// in reverse order using Streams API
import java.util.stream.IntStream;

public class Main {

    public static void main(String[] args) {

        // Array initialization
        int[] arr = {10, 20, 30, 40, 50};

        // Iterating over the array in reverse 
        // order using Streams
        IntStream.range(0, arr.length)
                .map(i -> arr[arr.length - i - 1])
                .forEach(i -> System.out.print(i + " "));
    }
}