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super keyword

Q. Why we use super keyword?
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-> Whenever we inherit the base class features into derived class there is a possibility
     that base class features are similar to derived class features.
-> Due to this, JVM get an ambiguity problem.
-> In order to differentiate between Base class features and Derived class features, for
    Base class features must be always proceed by super keyword.

***
-> In other words, super is a keyword which is used for differentiate between Base class
    features and Derived class features.
*****
-> super keyword is playing an important role in three places. They are:
    1. At variable level
    2. At method level
    3. At constructor level

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