It is very common question in interview Why we use Interface and Abstract Class.
I'm trying to explain in which situation we have need to use Interface and Abstract Class.
Serialization is a process of converting the object into a form so that it can be stored on a file, database, or memory, it can be transferred across the network.
Its main purpose is to save the state of the object so that it can be recreated when needed.
STUFF function deletes a sequence of characters from a source string and then inserts another sequence of characters into the source string, starting at a specified position.
