Java Interview Q&A on Overloading and Overriding

In this session, I explained Java interview questions and answers on Overloading and Overriding concept with examples

[shashanksinghsisodiya]

We can change overload method return types..return types matter in overriding not in overloading..Eg. we can overload string return type to char[] return type and method name and parameter can be different

[sainandangolla]

any predefined classes in spring which is simillar to polymorphism.(give some class names on overloading and overriding)
sir please give reply .