Write a program to print the reverse of the given string ?

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Write a program to print the reverse of the given string.

Input

codecode

Output

edocedoc

Input Constraints

1<=Length of string<=100

Input string contains only lowercase characters ['a' to 'z'].

 

package InterviewProgram;

import java.util.Scanner;

public class ReverseStringWithRules

{  public static void main(String[] args)

         {          Scanner scanner = new Scanner(System.in);

                System.out.print("Input: ");

                String input = scanner.nextLine();

                if (input.length() < 1 || input.length() > 100) {

                    System.out.println("Invalid input length. Length should be between 1 and 100.");

                    return;

                }

                if (!input.matches("[a-z]+")) {

                    System.out.println("Invalid input. Please enter a string with lowercase characters     only.");

                    return;

                }

                String reversed = reverseString(input);

                System.out.println("Output: " + reversed);

            }

            public static String reverseString(String input) {

                StringBuilder reversed = new StringBuilder();

                for (int i = input.length() - 1; i >= 0; i--) {

                    reversed.append(input.charAt(i));

                }

                return reversed.toString();

            }

}

Output :

Input: dargablogs

Output: sgolbagrad

Explanation:

1. We start by importing the Scanner class, which allows us to take input from the user.
2. In the main method, we prompt the user to input a string and store it in the input variable.
3. We check if the length of the input string is within the valid range (1 to 100) and also ensure that the input contains only lowercase characters using regular expression [a-z]+.
4.The reverseString method takes the input string as an argument and returns the reversed string. It uses a StringBuilder to build the reversed string by iterating through the characters of the input string in reverse order.
5.Finally, we print the reversed string as the output.