Overriding Base Class Functions in the Derived Class
When a base and a derived class have public member functions with the same name and parameter list types, the function in the derived class overrides that in the base class when the function is called as a member of the derived class object.
Consider the following code:
class time
{
protected :
int hr ;
int min ;
int sec ;
public :
void settime( int h, int m, int s ) ;
void show ( ) ;
} ;
class clock : public time
{
char str[ 5 ] ; // for AM PM
public :
void setAMPM( ) ;
void show ( ) ;
} ;
Now if we declare an object t of class clock and then invoke t.show ( ), which method should be executed? The one defined in base class or in the derived class?
In this case the function in the derived class will be executed. It will override the function in the base class.
