Question

IN JAVA

Create an array and add random values to it, and then find the sum of the values using recursion.

Answer 1

import java.util.Scanner;

public class RecursiveSum {

    public static int recursiveSum(int[] arr, int size) {
        if (size > 0) {
            return arr[size - 1] + recursiveSum(arr, size - 1);
        }
        return 0;
    }

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter size of array: ");
        int[] list = new int[in.nextInt()];
        for (int i = 0; i < list.length; i++) {
            list[i] = (int) (Math.random() * 100);
        }
        System.out.print("Array is:");
        for (int i = 0; i < list.length; i++) {
            System.out.print(" " + list[i]);
        }
        System.out.println();
        System.out.println("Sum of numbers in array is: " + recursiveSum(list, list.length));
    }
}