Throw keyword in Java
In Java, the throw the keyword is used to explicitly throw exceptions. While the JVM automatically throws exceptions when it encounters certain conditions, there are situations where we may need to throw user-defined or runtime exceptions explicitly using the throw keyword.
When the throw the statement is executed, the program flow stops, and subsequent statements are not executed. The exception object is then passed to the JVM to handle it. The JVM looks for a corresponding catch block in the try-catch hierarchy to handle the exception. If it finds an appropriate catch block, the exception is caught and handled, and the program continues execution from the catch block.
However, if there is no matching catch block, the JVM searches for the next catch statement in the try-catch hierarchy. If no appropriate handler is found, the default exception handler takes over. The default handler halts the program and displays the description and location of the exception.
In summary, the throw keyword allows us to manually throw exceptions in Java, providing a way to handle specific situations where customized or user-defined exceptions need to be raised.
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