ProductArray.java

package com.sarvesh.javabasics;
import java.util.Scanner;

public class ProductArray {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        System.out.print("Enter number of elements: ");
        int n = sc.nextInt();

        int[] arr = new int[n];

        System.out.println("Enter elements:");
        for(int i = 0; i < n; i++) {
            arr[i] = sc.nextInt();
        }

        int[] left = new int[n];
        int[] right = new int[n];
        int[] result = new int[n];

        left[0] = 1;
        for(int i=1;i<n;i++) {
            left[i] = left[i-1] * arr[i-1];
        }
        right[n-1] = 1;
        for(int i=n-2;i>=0;i--) {
            right[i] = right[i+1] * arr[i+1];
        }

        for(int i=0;i<n;i++) {
            result[i] = left[i] * right[i];
        }
        System.out.println("Result array:");
        for(int i=0;i<n;i++) {
            System.out.print(result[i] + " ");
        }
        sc.close();
    }
}