Complete Java SE 8 Developer Bootcamp - Unchecked (Runtime) vs. Checked Exceptions

The video tutorial explains Java's throwable hierarchy, distinguishing between errors and exceptions. It delves into checked and unchecked exceptions, emphasizing the need to handle checked exceptions. The tutorial provides methods for handling exceptions, such as using try-catch blocks or rethrowing exceptions. A practical example demonstrates handling a MalformedURLException, highlighting the importance of proper exception management to prevent program crashes.

What is the primary difference between errors and exceptions in Java?

• Errors are more severe and typically not caught, while exceptions can be handled.

• Errors are less severe and can be caught, while exceptions are more severe and cannot be caught.

• Errors and exceptions are the same and can both be caught.

• Errors are specific to syntax issues, while exceptions are related to logic errors.

Which of the following is considered a runtime exception?

• NullPointerException

• FileNotFoundException

• SQLException

• IOException

What must a programmer do when encountering a checked exception?

• Convert it into a runtime exception.

• Log it and continue execution without handling.

• Handle it using a try-catch block or declare it to be thrown.

• Ignore it, as the compiler will handle it automatically.

In the provided code example, what is the purpose of using a try-catch block?

• To handle the MalformedURLException and prevent the program from crashing.

• To log the exception for debugging purposes.

• To convert the exception into a runtime exception.

• To ignore the exception and continue execution.

Why is it not advisable to let the main method throw exceptions?

• Because it will cause the program to crash.

• Because it will result in a memory leak.

• Because it will automatically convert exceptions to errors.

• Because it will cause the program to run slower.