Method overloading
done in same 
class but method overridng done in 
diff. Class here inheritance occure.

Overriding - same method names with same arguments and same
return types associated in a class and its subclass. 
 
Overloading - same method name with different arguments, may
or may not be same return type written in the same class itself.

Overloading:
Same function name but different arguments
Eg:
   A(int i);
   A(int i,float f);

Overriding:
refers to functions that have the same signature as a
virtual function in the base class:
class B {
virtual void V();
};

class D : public B {
viod V();
};