Answer Posted / javamasque

Overloading: As more than one methods are defined with in same class with same name but have any one of the below differences is called method overloading. It is also call static / compile time polymorphism.
1. Input parameter data type should be different.
2. Number of input parameters should be different.
There are two types of overloading as below
1. Constructor overloading.
2. Method overloading (instance / class)
Note: Overloading is not considered on below things
1. Return type
2. Access modifier
3. Sequence of input parameters.
4. Different exceptions

Overriding: As a method in parent class is defined with exact same signature in one of its child class is call method overriding. It is called dynamic or runtime polymorphism. Method overriding is still considered even if the override method in child class is differ as below from its parent method.
1. The visibility can be broader but can’t be narrower.
2. The exception can be specific but can’t be generic.
3. The return type can be narrower but can’t be broader.

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