C++ Program for Inheritance Beyond Single Level

What are Inheritance in C++ ?

• Inheritance allows us to define a class in terms of another class, which makes it easier to create and maintain an application. This also provides an opportunity to reuse the code functionality and fast implementation time.
• When creating a class, instead of writing completely new data members and member functions, the programmer can designate that the new class should inherit the members of an existing class. This existing class is called the base class, and the new class is referred to as the derived class.
• The idea of inheritance implements the is a relationship. For example, mammal IS-A animal, dog IS-A mammal hence dog IS-A animal as well and so on.

Types of Inheritance : :

There are different types of inheritance : :

• Single Inheritance
• Multiple Inheritance
• Multilevel Inheritance
• Hierarchical Inheritance
• Hybrid (Virtual) Inheritance

Below is the source code for C++ Program for Inheritance Beyond Single Level which is successfully compiled and run on Windows System to produce desired output as shown below :

SOURCE CODE : :

/*  C++ Program for Inheritance Beyond Single Level  */

#include <iostream> 
using namespace std;
class industry 
{ 
    protected: 
                       char name[25]; 
    public: 
                void insert() 
                  { 
                       cout<<"Enter Your Name : "; 
                       cin>>name; 
                  } 
                void output() 
                 { 
                       cout<<"\nName : "<<name<<"\n"; 
                 } 
}; 
class computer: public industry 
{ 
     protected : 
                        char education[10]; 
                        float salary; 
     public: 
                void insert() 
                 { 
                       industry:: insert(); 
                       cout<<"Enter Your Highest Qualification : "; 
                       cin>>education; 
                       cout<<"\nEnter Your Salary : "; 
                       cin>>salary; 
                  } 
                void output() 
                 { 
                       industry::output(); 
                       cout<<"Highest Qualification is : "<<education<<"\n"; 
                       cout<<"Salary Drawn is : "<<salary<<"\n"; 
                 } 
}; 
class manager : public industry 
{ 
    protected : 
                       int experience; 
                       char grade; 
   public: 
               void insert() 
                { 
                       industry::insert(); 
                       cout<<"Your Previous Experience : "; 
                       cin>>experience; 
                       cout<<"\nYour Grade : "; 
                       cin>>grade; 
                 } 
               void output() 
                { 
                       industry::output(); 
                       cout<<"Total Previous Experience : "<<experience<<"\n"; 
                       cout<<"Your Grade : "<<grade<<"\n"; 
                 } 
}; 
class admin: public industry 
{ 
    protected : 
                      char type[10]; 
    public: 
              void insert() 
               { 
                     industry::insert(); 
                     cout<<"Type : "; 
                     cin>>type; 
               } 
             void output() 
              { 
                     industry::output(); 
                     cout<<"Type : "<<type<<"\n"; 
               } 
}; 
class soft: public computer 
{ 
   protected : 
                     char expert[10]; 
   public: 
             void insert() 
              { 
                     computer::insert(); 
                     cout<<"Enter Your Expertise Field : "; 
                     cin>>expert; 
               } 
             void output() 
              { 
                     computer::output(); 
                     cout<<"Expertise Field is : "<<expert<<"\n"; 
              } 
}; 
class hard: public computer 
{ 
   protected: 
                    int experience; 
   public: 
            void insert() 
             { 
                     computer::insert(); 
                     cout<<"Enter Previous Experience : "; 
                     cin>>experience; 
              } 
           void output() 
            { 
                    computer::output(); 
                    cout<<"Previous Experience in Hardware : "<<experience<<"\n"; 
             } 
}; 
      int main( ) 
{ 
                 soft sl; 
                 hard h1; 
                 manager m1; 
                 admin a1; 
                
                 cout<<"Enter the Data for Software Personnel : "<<endl; 
                 sl.insert(); 
                 cout<<"\nInformation of Software Personnel : "; 
                 sl.output(); 
                 cout<<"\nEnter the Data for Hardware Personnel : \n"; 
                 h1.insert(); 
                 cout<<"\nInformation of Hardware Personnel : "; 
                 h1.output(); 
                 cout<<"\nEnter Data for Manager : \n"; 
                 m1.insert(); 
                 cout<<"\nManager Information : "; 
                 m1.output(); 
                 cout<<"\nEnter Data for Administrative Staft : \n"; 
                 a1.insert(); 
                 cout<<"\nOutput of the Administrative Staff : "; 
                 a1.output(); 
                 return 0;
}

OUTPUT : :

/*  C++ Program for Inheritance Beyond Single Level  */

Enter the Data for Software Personnel :                                                                                                                                                                                        
Enter Your Name : codez                                                                                                                                                                                                        
Enter Your Highest Qualification : b.tech                                                                                                                                                                                      
                                                                                                                                                                                                                               
Enter Your Salary : 50000                                                                                                                                                                                                      
Enter Your Expertise Field : c++                                                                                                                                                                                               
                                                                                                                                                                                                                               
Information of Software Personnel :                                                                                                                                                                                            
Name : codez                                                                                                                                                                                                                   
Highest Qualification is : b.tech                                                                                                                                                                                              
Salary Drawn is : 50000                                                                                                                                                                                                        
Expertise Field is : c++                                                                                                                                                                                                       
                                                                                                                                                                                                                               
Enter the Data for Hardware Personnel :                                                                                                                                                                                        
Enter Your Name : club                                                                                                                                                                                                         
Enter Your Highest Qualification : m.tech                                                                                                                                                                                      
                                                                                                                                                                                                                               
Enter Your Salary : 100000                                                                                                                                                                                                     
Enter Previous Experience : employee                                                                                                                                                                                           
                                                                                                                                                                                                                               
Information of Hardware Personnel :                                                                                                                                                                                            
Name : club                                                                                                                                                                                                                    
Highest Qualification is : m.tech                                                                                                                                                                                              
Salary Drawn is : 100000                                                                                                                                                                                                       
Previous Experience in Hardware : 0                                                                                                                                                                                            
                                                                                                                                                                                                                               
Enter Data for Manager :                                                                                                                                                                                                       
Enter Your Name : Your Previous Experience :                                                                                                                                                                                   
Your Grade :                                                                                                                                                                                                                   
Manager Information :                                                                                                                                                                                                          
Name : � `                                                                                                                                                                                                                     
Total Previous Experience : 32611                                                                                                                                                                                              
Your Grade :                                                                                                                                                                                                                   
                                                                                                                                                                                                                               
Enter Data for Administrative Staft :                                                                                                                                                                                          
Enter Your Name : Type :                                                                                                                                                                                                       
Output of the Administrative Staff :                                                                                                                                                                                           
Name :                                                                                                                                                                                                                         
Type : ��~c

Above is the source code and output for C++ Program for Inheritance Beyond Single Level which is successfully compiled and run on Windows System to produce desired output.