Exception Handling (Basic)

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Questions and Answers

Which block is executed whether or not an exception occurs?

  • throw block
  • try block
  • finally block (correct)
  • catch block

What is the purpose of the finally block?

  • To clean up code (correct)
  • To throw exceptions
  • To define exception types
  • To handle exceptions

Which keyword is used to explicitly throw an exception?

  • finally
  • throw (correct)
  • try
  • catch

What is the syntax for throwing a custom exception?

<p>throw new CustomException; (B)</p> Signup and view all the answers

Which type of exceptions can be thrown by the JVM?

<p>All of the above (D)</p> Signup and view all the answers

What is the purpose of the catch block?

<p>To handle exceptions (A)</p> Signup and view all the answers

Can a try block have multiple catch blocks?

<p>Yes, multiple catch blocks are allowed (C)</p> Signup and view all the answers

What happens if no exception occurs in a try block?

<p>No catch blocks will be executed (B)</p> Signup and view all the answers

What is the purpose of a generic catch block?

<p>To handle all types of exceptions (B)</p> Signup and view all the answers

What is the order of execution for multiple catch blocks?

<p>Based on the exception type (C)</p> Signup and view all the answers

Which of the following best describes an exception in Java?

<p>An expected event that disrupts the normal flow of the program (D)</p> Signup and view all the answers

What is the purpose of exception handling in Java?

<p>To prevent termination of the program (C)</p> Signup and view all the answers

Which of the following is NOT a reason for an exception to occur in Java?

<p>Syntax error in the code (B)</p> Signup and view all the answers

What is the main difference between an error and an exception in Java?

<p>Errors cannot be handled by the developer, while exceptions can (A)</p> Signup and view all the answers

Which block is used to handle exceptions in Java?

<p>Catch block (A)</p> Signup and view all the answers

What is the purpose of the finally block in exception handling?

<p>To execute code regardless of whether an exception occurs or not (A)</p> Signup and view all the answers

Which keyword is used to explicitly throw an exception in Java?

<p>Throw (B)</p> Signup and view all the answers

Which keyword is used to declare that a method may throw an exception?

<p>Throws (C)</p> Signup and view all the answers

What are user-defined exceptions in Java?

<p>Exceptions created by the developer (A)</p> Signup and view all the answers

Which of the following is NOT a common exception in Java?

<p>SyntaxException (B)</p> Signup and view all the answers

Which type of exception arises during compilation time?

<p>Checked Exceptions (B)</p> Signup and view all the answers

What is the purpose of exception handling in Java?

<p>To display user-friendly error messages (C)</p> Signup and view all the answers

What happens if an exception is not handled properly?

<p>An unfriendly message containing exception details will appear and the program will terminate abruptly (D)</p> Signup and view all the answers

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

<p>To enclose the lines of code that can cause an exception (B)</p> Signup and view all the answers

What is the syntax of a try block in exception handling?

<p>try { Block of code; } (B)</p> Signup and view all the answers

What is the purpose of the catch block in exception handling?

<p>To handle the exception (B)</p> Signup and view all the answers

What type of exception is ArithmeticException?

<p>Unchecked Exception (B)</p> Signup and view all the answers

What happens if an exception occurs in the try block?

<p>The rest of the statements in the try block will not be executed (A)</p> Signup and view all the answers

What is the purpose of the finally block in exception handling?

<p>To execute code regardless of whether an exception occurred or not (D)</p> Signup and view all the answers

What is the superclass of all errors and exceptions in Java?

<p>Throwable (B)</p> Signup and view all the answers

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