How to use the Throws keyword in Java (and when to use Throw)

The text provides an explanation of the "throw" and "throws" keywords in Java, illustrating their distinct roles in handling exceptions within a program. "Throw" is used to explicitly create and throw an exception, stopping the program's execution, while "throws" is used in a method signature to declare potential exceptions, serving as a warning to the caller. The text includes examples demonstrating how "throw" can be used to throw both checked and unchecked exceptions directly, whereas "throws" is used to declare checked exceptions that must be handled by the caller. It emphasizes that the "throws" keyword allows exceptions to be propagated through the call stack, necessitating that the caller manage these exceptions to maintain program flow. The explanation is supplemented with Java syntax examples and highlights the utility of Rollbar, a tool for managing and analyzing Java exceptions in real-time, enhancing confidence in deploying production code.

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