Develop a program in C++ to create a database of student’s information system containing the following information: Name, Roll number, Class, Division, Date of Birth, Blood group, Contact address, Telephone number, Driving license no. and other. Construct the database with suitable member functions. Make use of constructor, default constructor, copy constructor, destructor, static member functions, friend class, this pointer, inline code and dynamic memory allocation operators-new and delete

/* Problem Statement : Develop a program in C++ to create a database of student’s information system containing the following information: Name, Roll number, Class, Division, Date of Birth, Blood group, Contact address, Telephone number, Driving license no. and other. Construct the database with suitable member functions. Make use of constructor, default constructor, copy constructor, destructor, static member functions, friend class, this pointer, inline code and dynamic memory allocation operators-new and delete*/ 

Algorithm

1. Start 

2. Read personnel information such as Name, Date of Birth, Blood group, Height, Weight, Insurance Policy number, Contact address, telephone number, driving license no.

3. Print all information from the database. 

4.stop

Input : Personnel information such as Name, Date of Birth, Blood group, Height, Weight, Insurance Policy number, contact address, telephone number, driving license no. 

Output: Display personal information from database. 

 

 

#include<iostream>
#include<string.h> // header file declares a set of functions to work strings.
using namespace std;

class db
{
int roll;
char name[20];
char Class[10];
char Div[10];
char dob[12];
char bg[5],city[10];
char phone[12],license[12];

public:
static int stdno; // declaration of static variable
static void count() // defination of static function
{
cout<<"\n No.of objects created: "<<stdno;
}

db() // default constructor
{
roll=7;
strcpy(name,"Sachin");
strcpy(Class,"SE");
strcpy(Div,"A");
strcpy(dob,"13/08/1992");
strcpy(bg,"B+");
strcpy(city,"Pune");
strcpy(phone,"9123456789");
strcpy(license,"A1010");
++stdno;
}
void getdata()// defining member function
{
cout<<"\n\nEnter:name,roll,Class,Div,Dob,bg,city,phone,license \n\n";
cin>>name>>roll>>Class>>Div>>dob>>bg>>city>>phone>>license;
}
friend void display(db d); // declaration of friend function

~db() // destructor
{
cout<<"\n\n"<<this->name<<"(Object) is destroyed!\n";
}
};

void display(db d) // defination of friend function
{
cout<<"\n Name:"<<d.name;
cout<<"\n Roll_No:"<<d.roll;
cout<<"\n Class:"<<d.Class;
cout<<"\n Div:"<<d.Div;
cout<<"\n DOB:"<<d.dob;
cout<<"\n Blood group:"<<d.bg;
cout<<"\n City:"<<d.city;
cout<<"\n Phone_No:"<<d.phone;
cout<<" \n Liacense_No:"<<d.license;
}
int db::stdno; // Define static data member stdno outside the class;

int main()
{
int n,i;
db d1,*ptr[5];
cout<<"\nDefault values:";
display(d1);

d1.getdata();
display(d1);

cout<<"\nHow many objects u want to create?:";
cin>>n;
for(i=0;i<n;i++)
{
ptr[i]=new db(); //new operator use to dynamic memory(run time) allocation
ptr[i]->getdata();
}
cout<<"\n"<<"name"<<"roll"<<"Class"<<"Div"<<"dob"<<"bg"<<"contact"<<"phone"<<"license";
for(i=0;i<n;i++)
display(*ptr[i]);
db::count(); // calling of static function

for(i=0;i<n;i++)
{
delete(ptr[i]); //delete operator use to deallocation of memory
}
cout<<"\nObjects deleted!" ;
}