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|Java - Interview Questions and Answers|
|Ans. 1. Methods can participate in runtime polymorphism whereas member variables cannot.|
For example -
Vehicle vehicle = new Car();
car.getObjVariable();// will return variable defined in Car
will return the variable from Car class irrespective of the object it holds.
2. Validations can be performed before setting the variables.
3. If the input format changes or some other value or calculated value needs to be returned , that can be absorbed by making change ( wrapping ) in the setter and getter. By this the call to method from outside or interface to the object will remain the same.
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