Core Java Interview Questions :Explain the user defined Exceptions?

User defined Exceptions are the separate Exception classes defined by the user for specific purposed. An user defined can created by simply sub-classing it to the Exception class. This allows custom exceptions to be generated (using throw) and caught in the same way as normal exceptions.:for eg: :User defines exception are Exception Subclasses. It allows you to create your own exception types to handle situations specific to your application....