Chapter 17: Exceptions

• What does exceptional situations in programming refer to?

  Situations like file unavailability or division by zero

  
• How does C# handle exceptions?

  C# provides a complete exception infrastructure

  
• Why do game developers prefer programs to crash instead of using exception handlers?

  Exception handling is slow and can affect performance
• What happens when an int division by zero occurs in C#?

  An exception is thrown, causing a crash

  
• What is the purpose of a try block in exception handling?

  To encapsulate code that might throw an exception
• What happens if no matching catch clause is found for an exception?

  The exception is passed to the calling method
• What is the base class for all exceptions in C#?

  System.Exception
• What is the role of a finally block in exception handling?

  It executes code regardless of exception occurrence
• How does a when clause enhance exception handling?

  It allows finer filtering of caught exceptions
• What happens if an exception occurs during a constructor execution?

  The exception is passed to the calling level
• What does Unity do with unhandled exceptions?

  Logs them using a global try/catch construct
• What are the key components of exception handling in C#?

  • try block: encapsulates code that may throw exceptions
  • catch clause: handles specific exceptions
  • finally block: executes code regardless of exceptions
  • throw statement: raises exceptions when needed
• What are the steps involved in throwing and catching an exception in C#?

  1. Code execution leads to an exceptional situation.
  2. An exception is thrown using the throw statement.
  3. The method halts and looks for a matching catch clause.
  4. If found, the catch clause executes; if not, it propagates.
  5. Finally block executes if present.