C program to create a file student.dat, C/C++ Programming

Assignment Help:

Program is to create a file student.dat:

Program is to create a file student.dat which contains all name, roll_no,marks(5 sub) and percentage

  class student

   {

   private:

    char name[20];

    int roll;

    int marks[5];

    int total;

    float perc;

   public:

    student()

     {

     total=0;

     }

     void input();

     void output();

     };

 

 void student::input()

  {

  clrscr();

  cout<<" enter your name ";

  gets(name);

  cout<<" enter your roll no. ";

  cin>>roll;

  cout<<" enter the marks of five subjects "<<"\n";

  for (int i=0;i<5;i++)

    {

    cout<<" enter marks";

    cin>>marks[i];

    total=total + marks[i];

    }

   }

 void student::output()

   {

   clrscr();

   perc=total/5;

    if (perc>=60)

      {

     cout<<" the name is "<

     cout<<" the total marks obtained out of (500) "<

     cout<<" the percentage "<

     }

    else

     cout<<" the percten tage is less then 60 ";

   }

 

  void main()

    {

    clrscr();

   student info;

   fstream file;

   file.open("student.dat",ios::in|ios::out);

   int n;

   cout<<" enter the number for which u want to enter data";

   cin>>n;

   for(int i=1;i<=n;i++)

     {

     info.input();

     file.write((char *)& info,sizeof(info));

     }

     file.close();

     file.open("student.dat",ios::in);

     while(file)

      {

    file.write((char *)& info,sizeof(info));

    info.output();

    }

   file.close();

   }


Related Discussions:- C program to create a file student.dat

What is the significance of external declaration, Problem 1 What is the...

Problem 1 What is the difference between function declaration and function definition? 2 Write a recursive function to find sum of even numbers from 2 to 10. 3 List some

Pro, em Ipsum is that it has a more-or-less normal distribution of letters,...

em Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using ''Content here, content here'', making it look like readable English. Many desktop publis

Stack push pop, 2 flowcharts, pseudocode for each (at least 4 algorithms), ...

2 flowcharts, pseudocode for each (at least 4 algorithms), and code for either a stack or a queuestion..

What is pointer arithmetic, Pointer Arithmetic We can manipulate the po...

Pointer Arithmetic We can manipulate the pointers too. We can perform operations such as addition, subtraction, increment and decrement etc.,. As the pointer variables have add

Where are longjmp and setjmp used in c++, Where are longjmp and setjmp used...

Where are longjmp and setjmp used in C++? -Setjmp and longjmp must not be used in C++. - Longjmp jumps out of the function without unwinding stack. This means that local obj

Explain pointers to objects, Pointers to Objects Passing and returning ...

Pointers to Objects Passing and returning of objects is, though, not very efficient since it includes passing and returning a copy of the data members. This problem can be elim

What is the employ of ''using'' declaration?, A: A using declaration makes ...

A: A using declaration makes it possible to employ a name from a namespace without the scope operator.

Example for register storage class - computer programming, Example for Regi...

Example for Register Storage Class - computer programming? main() { register int i; for (i=0; i { ............... ............... } } /* block exit will free the register

Applied scientific computing in c++, i have a project that is due this Wedn...

i have a project that is due this Wednesday and i was wondering if i can get help in doing it?

Explain mixed mode expressions and implicit type conversions, Mixed Mode Ex...

Mixed Mode Expressions and Implicit type Conversions A mixed mode expression is one in which the operands are not of the similar type. In this case, the operands are converted

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd