Welcome to this quiz on one of the most critical aspects of C++ – Exception Handling. Exception handling allows developers to manage unforeseen errors and provide ways to handle them gracefully without crashing the entire application. Let’s test your knowledge of this essential topic!
1. Which keyword is used to handle an exception?
Answer:
Explanation:
The catch block is used to handle exceptions. It is paired with a try block which contains the code that might throw exceptions.
2. Which keyword is used to signal the occurrence of an exception?
Answer:
Explanation:
The throw keyword is used to signal or throw an exception.
3. What is the purpose of the try block?
Answer:
Explanation:
The try block contains the segment of code where an exception might occur.
4. Which of the following can be thrown as an exception in C++?
Answer:
Explanation:
In C++, almost any value or object can be thrown as an exception.
5. If you have multiple catch blocks for a try block, how are they executed?
Answer:
Explanation:
When an exception is thrown, the catch blocks are examined in order: the first catch block that can handle the exception type is executed.
6. Which standard library class can be used for exception handling in C++?
Answer:
Explanation:
The exception class is the standard library class in C++ for exception handling.
7. What will happen if an exception is not caught?
Answer:
Explanation:
If an exception is thrown but not caught, the C++ runtime system handles it by terminating the program.
8. Which keyword is used to specify a block of code that must be executed after the try-catch block?
Answer:
Explanation:
Unlike some other languages like Java, C++ doesn’t have a finally block.
9. What is the base class for all standard exception classes?
Answer:
Explanation:
In C++, std::exception is the base class for all standard exceptions.
10. Which of the following is not a standard exception derived from std::exception?
Answer:
Explanation:
There isn’t any std::throws exception in the standard C++ library.
Exception handling is a critical aspect of C++, offering developers a way to predictably manage unforeseen errors. Remember, understanding how to utilize exception handling can make your software robust and user-friendly. How did you fare in this quiz? Keep studying and practicing to master all aspects of C++!