Java Exception Handling
1. What is an exception in Java?
2. Explain the difference between checked exceptions and unchecked exceptions in Java.
3. What are some common examples of checked exceptions in Java?
4. What are some common examples of unchecked exceptions in Java?
5. How do you handle exceptions in Java?
6. What is the purpose of the try, catch, and finally blocks in exception handling?
7. Can you have a catch block without a try block in Java?
8. What is the order of execution when an exception is thrown in Java? 9. What is the purpose of the finally block in exception handling? 10. Can you have multiple catch blocks for a single try block in Java? 11. What is the difference between throw and throws in Java? 12. How do you create custom exceptions in Java? 13. Explain the concept of exception propagation in Java. 14. What is the difference between the finally block and the final keyword in Java? 15. Can you have a finally block without a catch block in Java? 16. What happens if an exception is not caught in Java? 17. What is the purpose of the throws keyword in a method declaration? 18. Can you rethrow an exception in Java? If so, how? 19. Explain the difference between the throw and throws keywords in Java. 20. How do you handle multiple exceptions in Java? 21. What is the purpose of the try-with-resources statement in Java? 22. How does Java handle exceptions in multi-threaded programs? 23. What is the role of the Thread.setDefaultUncaughtExceptionHandler method in Java? 24. What is the difference between Error and Exception classes in Java? 25. What are some best practices for exception handling in Java? 26. What is the purpose of the NullPointerException in Java? 27. What is the difference between the NullPointerException and the ArrayIndexOutOfBoundsException in Java? 28. How can you prevent null pointer exceptions in Java? 29. Explain the concept of exception chaining in Java. 30. What is the purpose of the assert statement in Java exception handling? 31. What is the difference between a custom exception and a built-in exception in Java? 32. What is the purpose of the try-catch-finally block in Java? 33. Can you have nested try-catch blocks in Java? 34. How do you handle exceptions in a multi-threaded environment in Java? 35. What is the role of the throws keyword in method signatures in Java? 36. How do you create a custom exception class in Java? 37. Explain the difference between the RuntimeException and Exception classes in Java. 38. How can you ensure resource cleanup in Java, especially when exceptions occur? 39. What is the difference between the try-with-resources statement and traditional resource management in Java? 40. What are the limitations of the try-with-resources statement in Java? 41. How can you handle checked exceptions when using lambda expressions in Java? 42. How do you handle exceptions when working with Java streams and lambdas? 43. Explain the concept of suppressed exceptions in Java. 44. What is the purpose of the java.util.Optional class in exception handling? 45. How can you handle exceptions gracefully in a Java web application? 46. What is the role of exception handling in microservices architecture? 47. How do you handle exceptions in asynchronous programming using Java? 48. What is the difference between a compile-time exception and a runtime exception in Java? 49. How do you handle concurrent modification exceptions in Java collections? 50. What is the purpose of the @ExceptionHandler annotation in Spring Framework for exception handling?