C++ Multiple Inheritance

Multiple inheritance is a feature of some object-oriented computer programming languages in which an object or class can inherit characteristics and features from more than one parent object or parent class.

Example 

#include<iostream>
#include<conio.h>
using namespace std ;
class employee

{
protected :
string idno , name , designation ;
public :
void input ()
{
cout<<"Enter Name \n";
getline(cin,name);
cout<<"Enter ID \n";
getline(cin,idno);
cout<<"Enter Designation \n";
getline(cin,designation);
}
void show ()
{
cout<<" Name is :"<<name<<endl;
cout<<"ID is :"<<idno<<endl;
cout<<"Designation is :"<<designation<<endl;
}
employee()
{
idno=name=designation=" ";
}
};
class salary : public employee 
{
protected :
float Basic_pay ,Human_Resource_allowance ,Dearness_allowance ,Profitability_fund ;
public :
void calculate_salary(){
cout<<"Enter Basic Pay \n";
cin>>Basic_pay;
cout<<"Enter Human Resource Allowance\n";
cin>>Human_Resource_allowance;
cout<<"Enter Dearness Allowance\n";
cin>>Dearness_allowance;
cout<<"Enter Profitability Fund\n";
cin>>Profitability_fund;
float salary ;
salary = Basic_pay+Human_Resource_allowance+Dearness_allowance+Profitability_fund;
show();
cout<<"Dear "<<name <<" Your Total Salary is :"<<salary ;
cout<<endl;
}
};
class bouns : public salary 
{
protected :
int bouns ;
public :
void boun_salary ()
{
bouns=1300;
} 
void total_salary ()
{
float ts;
ts=bouns+salary;
cout<<"Dear"<<name<<"Your Salary With Bouns :"<<ts;
}
};
class transport : public employee 
{
protected :
float transport;
public :
void transport_charges()
{
float ts;
cout<<"Enter you transport chagers\n";
cin>>transport;
ts=salary-transport;
cout<<"After Deductions of transport chagers your salary is : "<<ts;
cout<<"/n";
} 
};
int main ()
{ 
salary em1,em2,em3;
em1.input();
em1.calculate_salary();
em1.show();
em2.input();
em2.calculate_salary();
em2.show();
em3.input();
em3.calculate_salary();
em3.show();
return 0 ;
}