The "Try-Catch" mechanism is a programming construct used to handle errors or exceptions that may occur during the execution of code. When a block of code is placed inside a try statement, the program attempts to execute it. If an error occurs, the control is transferred to the corresponding catch block, where the error can be managed or logged without crashing the program. This approach allows developers to create more robust applications by anticipating potential issues and providing alternative solutions. By using "Try-Catch," programmers can ensure that their code runs smoothly, even when unexpected problems arise, improving overall user experience.