StringBufferOperations.java

import java.util.Scanner;

public class StringBufferOperations {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("Enter a string:");
        String input = scanner.nextLine();
        StringBuffer sb = new StringBuffer(input);
        // Length of string
        int length = sb.length();
        System.out.println("Length of the string: " + length);
        // Reverse a string
        StringBuffer reversedString = sb.reverse();
        System.out.println("Reversed string: " + reversedString);
        sb.reverse();
        // Delete a substring from the given string
        System.out.println("Enter the substring to delete:");
        String substringToDelete = scanner.nextLine();
        int start = sb.indexOf(substringToDelete);
        if (start != -1) {
            int end = start + substringToDelete.length();
            sb.delete(start, end);
            System.out.println("String after deletion: " + sb);
        } else {
            System.out.println("Substring not found in the string.");
        }
        scanner.close();
    }
}