#include<iostream.h>
#include<conio.h>
#include<fstream.h>
#include<iomanip.h>
class student
{
 int rollno,marks;
 char name[20];
 public:
	void show();
	void get();
};
void student::get()
{
 cout<<"Enter the name of student:";
 cin>>name;
 cout<<"Enter the roll no. of student:";
 cin>>rollno;
 cout<<"Enter the marks of student:";
 cin>>marks;
}
void main()
{
 clrscr();
 student record;
 fstream file;
 file.open("student.txt",ios::in|ios::out|ios::binary|ios::app);
 char flag='y';
 while(flag=='y'||flag=='Y')
 {
	record.get();
	file.write((char*)&record,sizeof record);
	cout<<"Enter another record(Y/N)....";
	cin>>flag;
 }
 file.seekg(0);
 cout<<"Roll No.\tName\tMarks"<<endl;
 while(file.read((char*)&record,sizeof record))
 {
	record.show();
 }
 file.close();
 getch();
}
void student::show()
{
 cout<<rollno<<"\t\t"<<name<<"\t"<<marks<<endl;
}