Question

JAVA:

Write a method with the following header to return a string format to represent the reverse order of the integer:

public static String reverse(int number)

For example, reverse(3456) returns 6543 and reverse(809340) returns 043908. Write a test program that prompts the user to enter an integer then displays its reversal.

Convert integer to string and print reverse of integer as string. Do not use built-in toString. Use loop.

Answer 1

import java.util.Scanner;
public class ReverseInt {
    public static String reverseInt(int n){
        String result = "";
        while (n!=0){
            result += n%10;
            n = n / 10;
        }
        return result;
    }

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        System.out.println("Enter number:");
        int n = scan.nextInt();

        System.out.println("Reverse of "+n+" is "+reverseInt(n));
    }
}