4. Exception Handling #

Created Monday 27 April 2020

Exception_Handling CN Official Notes

• Exception handling increases maintainability as it seperates errors/exception from intermingling with the logic. i.e error handling is done seperately.
• Error handling does not do implicit conversions.
• It’s like a switch case.
• throw is like return.
• We can form a hierarchy of try throw and catch.
• try must contain throw inside, catch must be in the same scope as try.
• catch(…) should be placed last it is like a default case in switch.
• Every object inside the try is destroyed before going to catch, just like normal return in functions.
• We can define our own exceptions by inheriting from the exception class should be included.
• Everything created inside the catch block is destructed before going to the catch block, so we **cannot **access the value made inside the catch.