StringManipulation.java

import java.util.Scanner;

public class StringManipulation {
    public static void main(String[] args) {
        try(Scanner scan = new Scanner(System.in)){

            System.out.println("Enter the first String: ");
            String firstString = scan.nextLine();

            char[] firstArray = firstString.toCharArray();
            int len = firstArray.length;
            System.out.println("The length of the string is " + len);

            System.out.println("Enter a position to find a character (0 to " + (len-1) + "): ");
            int position = scan.nextInt();

            if (position>=0 && position<len) {
                char chatAtPosition = firstArray[position];
                System.out.println("The character at the position " + position + " is " + chatAtPosition);
            }

            else{System.out.println("invalid position");}

            scan.nextLine(); //clear the buffer

            System.out.println("Enter the second String: ");
            String secondString = scan.nextLine();

            String concatenated = firstString + " " + secondString;
            System.out.println("The concatenated string is \n" + concatenated);
            
        }

        catch(Exception e){
            System.out.println("Please enter String as Input!");
        }
    
    }
}