Lesson: Exceptions (The Java™ Tutorials > Essential Java Classes)
https://docs.oracle.com/javase/tutorial/essential/exceptions/index.html
WEBAn exception is an event that occurs during the execution of a program that disrupts the normal flow of instructions. The Catch or Specify Requirement. This section covers how to catch and handle exceptions. The discussion includes the try, catch, and finally blocks, as well as chained exceptions and logging. How to Throw Exceptions.
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