Concept
How can you manually throw an exception in Java?
ComputerScienceOne / Creating Custom Exceptions
"We can also manually throw an exception. For example, we can throw a generic RuntimeException using the following.\n\nthrow new RuntimeException(\"Something went wrong\");\n\nBy using a generic RuntimeException, we can attach a message to the exception, which can be printed by code that catches the exception. If we want more fine-grained control over the type of exceptions, we need to define our own exceptions."
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