12.5. Basic Syntax

Try these first

1. 1.

   What is the purpose of a try block in Java?

   Hint

   Think about error-prone operations.

2. 2.

   What follows a catch block in exception handling?

   Hint

   This block is for cleanup.

3. 3.

   What is the purpose of the try block?

   • To handle exceptions
   • To execute code that may throw an exception
   • To define an error

   Hint

   Focus on what it's meant to capture.

4. 4.

   True or False: The finally block is optional in exception handling.

   • True
   • False

   Hint

   Consider if it’s necessary for all error handling.

5. 5.

   Write a Java program that includes a try block for reading an integer from user input and handles a NumberFormatException.

   Hint

   Think about what happens if the user types something other than a number.

6. 6.

   Create a function that reads a file and catches both IOException and NullPointerException, ensuring resources are cleaned.

   Hint

   How will you ensure the FileReader is closed regardless of success or failure?