Is it mandatory for a catch block to be followed after a try block?

 Yes, in Java it is mandatory for a catch block to be followed by a try block. The catch block is used to handle an exception that is thrown by the code in the try block. If an exception is thrown and there is no catch block to handle it, the program will terminate with an error.

Here is an example of a try-catch block in Java:

try { // code that might throw an exception goes here } catch (Exception e) { // handle the exception }

In this example, the try block contains code that might throw an exception, and the catch block provides a handler for the exception. If an exception is thrown by the code in the try block, it will be caught by the catch block and the code in the catch block will be executed.

It is also possible to include a finally block after the catch block. The finally block will be executed whether or not an exception is thrown by the code in the try block. It can be used to perform cleanup tasks or other actions that should always be taken, regardless of whether an exception occurs.

Here is an example of a try-catch-finally block in Java:

try { // code that might throw an exception goes here } catch (Exception e) { // handle the exception } finally { // code that will always be executed goes here }