Hierarchical Inheritance - A base class can have many derived classes.
Example –
Hierarchical Inheritance, where Customer class and Vendor class using same
database of base class Personal.
#include <iostream.h>
#define MAX 10
class Personal //Base Class
{
protected:
int code[MAX];
char name[MAX][20];
int amt[MAX];
int size;
public:
Personal(int x)
{
size=x;
}
void getData();
void showData();
};
void Personal::getData()
{
for(int i=0;i<size;i++)
{
cout<<"\n\tCode? ";
cin>>code[i];
cin.ignore();
cout<<"\n\tName?
";
cin.get(name[i],20);
cout<<"\n\tAmount
Due? ";
cin>>amt[i];
}
}
void Personal::showData()
{
cout<<"\n\t
Code\tName\tAmount";
cout<<"\n\t==========================";
for(int i=0;i<size;i++)
{
cout<<"\n\t"<<code[i]<<"\t"<<name[i]<<"\t"<<amt[i];
}
}
class Vendor:public Personal //Derive Class
{
private:
int amtPaid,cd;
public:
Vendor(int x):Personal(x){}
void Payment()
{
int f=0;
cout<<"\n\tEnter Vendor Code : ";
cin>>cd;
for(int i=0;i<size;i++)
{
if(cd==code[i])
{
f=1;
break;
}
}
if(f==0)
{
cout<<"\n\t\t**No
Such Vendor Presents **";
}
else if(f==1)
{
if(amt[i]<=0)
{
cout<<"\n\t
No due amount for "<<name[i]<<"\n";
}
else
{
cout<<"\n\tEnter
Amount Paid : ";
cin>>amtPaid;
amt[i]=amt[i]-amtPaid;
cout<<"\n\tRecord
Updated ";
showData();
}
}
}
};
class Customer:public Personal //Derive Class
{
private:
int amtRecvd,cd;
public:
Customer(int x):Personal(x){}
void Received()
{
int f=0;
cout<<"\n\tEnter
Customer Code : ";
cin>>cd;
for(int i=0;i<size;i++)
{
if(cd==code[i])
{
f=1;
break;
}
}
if(f==0)
{
cout<<"\n\t\t**Invalid Customer Code **";
}
else if(f==1)
{
if(amt[i]<=0)
{
cout<<"\n\t
No due amount for "<<name[i]<<"\n";
}
else
{
cout<<"\n\tEnter
Amount Received : ";
cin>>amtRecvd;
amt[i]=amt[i]-amtRecvd;
cout<<"\n\tRecord
Updated ";
showData();
}
}
}
};
int main()
{
int n;
cout<<"\n\tEnter
Nos of Records : ";
cin>>n;
Vendor V(n);
V.getData();
V.showData();
V.Payment();
Customer C(n);
C.getData();
C.showData();
C.Received();
return 0;
}
1 comment:
Inheritance in C++
Thanks for this post
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