What will happen if an exception is not handled in a `try` block?

When an exception is not handled within a try block, the result is that the program will terminate execution at that point, leading to an error message being displayed. This outcome occurs because exceptions indicate that something unexpected has transpired, often due to issues like invalid operations, resource unavailability, or logical errors in the code.

In this situation, since the code does not contain any catch or finally blocks to manage the exception, the default behavior of the program is to stop executing and return control back to the runtime environment. This is why users typically see an error message detailing the exception that led to the program's termination, which can be helpful for debugging purposes.

An important aspect of this behavior is that unless the exception is adequately managed, the program cannot recover from the error, leading to a halt. This reinforces the significance of implementing proper exception handling in robust applications to enhance stability and user experience.