Overriding a super class's instance variables

Question

Why are we not able to override an instance variable of a super class in a subclass?

Answer 1

you can override a method,that is all right but what do you mean by overriding a variable? if you want to use a variable at any other place rather than super class u can use super. as in super(variable names); why do you want to override a variable? i mean is there any need?