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FAQs

Exception Handling in Java is one of the most effective ways to manage runtime failures while maintaining the application's normal flow. ClassNotFoundException, IOException, SQLException, RemoteException, and other runtime issues are handled by Java Exception Handling.

The following code snippet shows how exception handling works in Java:

  • try {
  • // do something
  • } catch (Exception e) {
  • // do something
  • } catch (Exception e2) {
  • // do something else if this exception is not handled by our try-catch block }

Exception Types:

  • RuntimeException: This is an exception that is thrown during runtime, usually when an application or library tries to access an object that does not exist.
  • NullPointerException: This exception is thrown when a null pointer is accessed. It indicates that the value being accessed was null and the program tried to dereference it, which would cause a runtime error.
  • ArrayIndexOutOfBoundsException: This exception is thrown when trying to access an array index outside of its bounds.

The benefits of using exception handling are that it can help you make your code more robust and easier to maintain. It also makes it easier for other programmers to understand and debug your code.

When an exception occurs, exception handling ensures that the program's flow does not break. For example, if a programme has a large number of statements and an exception occurs in the middle of executing some of them, the statements after the exception will not be executed, and the programme will end abruptly.

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