What is the purpose of the try-catch-finally block in Java?

The try-catch-finally block in Java is a structure used for exception handling. This block is used to handle errors that may occur during the execution of a Java program, allowing the programmer to gracefully handle these errors and prevent the program from crashing.

The try block is used to enclose the code that may throw an exception. If an exception occurs within the try block, it is caught by the catch block. The catch block contains the code that will be executed if an exception is thrown. Multiple catch blocks can be used to handle different types of exceptions.

The finally block is used to enclose code that will be executed regardless of whether an exception is thrown or not. This block is often used to perform clean-up operations, such as closing database connections or releasing system resources.

The purpose of the try-catch-finally block is to provide a way to handle errors that may occur during the execution of a program. By catching these errors and handling them in a structured way, the programmer can ensure that the program continues to run smoothly and that the user is not presented with cryptic error messages.