Subject :Java

dont copy from chegg please

b) Polymorphism is essential to object-oriented programming for one reason: it allows a general class to specify methods that will be common to all of its derivatives, while allowing subclasses to define the specific implementation of some or all of those methods. There has some feature in java programming where some methods must be overridden in sub classes and some methods can't be overridden in subclasses. Illustrate all possible solution with appropriate example