Refactoring type checks to utilize instanceof -- improve code readability and maintainability

The original code used nested try-catch blocks with ClassCastException to determine the type of the 'task' object. This approach can be confusing and less efficient.

In the edited code, I replaced the try-catch blocks with a series of if-else statements that utilize the instanceof operator to check the type of 'task'. This change improves code readability and makes it easier to understand the logic. Additionally, it provides better performance as exceptions are costly in terms of computational resources.

This commit improves code quality by enhancing readability, maintainability, and efficiency. It adheres to best practices for type checking and helps prevent potential exceptions, resulting in more robust code.