Friday, 27 October 2023

Write a java program to accept ‘n’ integers from the user & store them in an ArrayList collection. Display the elements of ArrayList collection in reverse order.-Core java Slip13

 

Write a java program to accept ‘n’ integers from the user & store them in an ArrayList collection. Display the elements of ArrayList collection in reverse order.

import java.io.*;

import java.util.ArrayList;

import java.util.Scanner;

 

public class ReverseArrayList {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        ArrayList<Integer> numberList = new ArrayList<Integer>();

 

        System.out.print("Enter the number of integers (n): ");

        int n = scanner.nextInt();

 

        System.out.println("Enter " + n + " integers:");

 

        for (int i = 0; i < n; i++) {

            int num = scanner.nextInt();

            numberList.add(num);

        }

 

        System.out.println("Elements in reverse order:");

 

        for (int i = numberList.size() - 1; i >= 0; i--) {

            System.out.println(numberList.get(i));

        }

 

        scanner.close();

    }

}

 

C:\Program Files\Java\jdk-11.0.17\bin>javac ReverseArrayList.java

 

C:\Program Files\Java\jdk-11.0.17\bin>java ReverseArrayList

Enter the number of integers (n): 3

Enter 3 integers:

123

124

125

Elements in reverse order:

125

124

123