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c++/Others/Program for book shop using pointers to base class.cpp

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+Program for book shop using pointers to base class
+This is a simple program that is used to provide
+information abt the book details n ect
+
+Code :
+
+
+#include<iostream.h>
+#include<conio.h>
+class book
+{
+char name[30];
+long int tel;
+public:
+void read()
+{
+cout<<"
+name:" ;
+cin>>name;
+cout<<name;
+cout<<"
+tel:";
+cin>>tel;
+}
+void disp()
+{
+cout<<"
+PURCHASER DETAILS : ";
+cout<<"
+Name : "<<name;
+cout<<"
+Tel No.:"<<tel;
+}
+};
+class shop:public book
+{
+char isbn[20],bname[30];
+long int price;
+public:
+void read()
+{
+cout<<"
+Book-Name : ";
+cin>>bname;
+cout<<"
+ISBN NO. : ";
+cin>>isbn;
+cout<<"
+Price of Book : Rs.";
+cin>>price;
+}
+void disp()
+{
+cout<<"
+
+BOOK DETAILS :";
+cout<<"
+Book-Name :" <<bname;
+cout<<"
+ISBN No. :"<<isbn;
+cout<<"
+Price : Rs."<<price;
+}
+};
+void main()
+{
+clrscr();
+book *ptr;
+book p;
+ptr=&p;
+cout<<"
+Enter details of purchaser : ";
+(*ptr).read();
+shop c;
+ptr=&c;
+cout<<"
+Enter the details of the book sold : ";
+((shop *)ptr)->read();
+(*ptr).disp();
+((shop *)ptr)->disp();
+getch();
+}