StringReversal2.java

import java.util.Scanner;

public class StringReversal2 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter a string: ");
        String input = scanner.nextLine();

        if (containsNumber(input)) {
            System.out.println("Sorry, this is a wrong input, please enter a String");
        } else {
            String reversed = reverseString(input);
            System.out.println("Reversed string: " + reversed);
        }
        scanner.close();
    }

    public static boolean containsNumber(String input) {
        for (char c : input.toCharArray()) {
            if (Character.isDigit(c)) {
                return true;
            }
        }
        return false;
    }

    public static String reverseString(String input) {
        char[] chars = input.toCharArray();
        int start = 0;
        int end = input.length() - 1;
        while (start < end) {
            char temp = chars[start];
            chars[start] = chars[end];
            chars[end] = temp;
            start++;
            end--;
        }
        return new String(chars);
    }
}