Design Principle - Liskov's Substitution Principle | Simple Programming
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Today, we are going to look at Liskov's Substitution Principle.
This principle explains how a derived class if used incorrectly can completely alter the program nature.
According to wikipedia, if S is a subtype of T, then objects of type T in a program may be replaced with objects of type S without altering any of the desirable properties of that program.
We must make sure that new derived classes are extending the base classes without changing their behavior.