Read and Write into a File

Write a C++ Program to Read and Write student details into a File using File Handling. Here’s simple Program to Read and Write into a File using File Handling in C++ Programming Language.

Below is the source code for C++ Program to Read and Write student details into a File using File Handling which is successfully compiled and run on Windows System to produce desired output as shown below :

SOURCE CODE : :

/*  C++ Program to Read and Write student details into a File  */

#include<iostream>
#include<stdio.h>
#include<stdlib.h>
#include<fstream>
using namespace std;

class student
{
   public:
       int roll;
       char name[100],f_name[100];
       void put();
       void get();
       void switch_case();
  }; student s;

 void student::put()
  {

   fstream file;
   cout<<"\nEnter roll no ::  ";
   cin>>roll;
   cout<<"\nEnter name :: ";
  cin>>name;
   cout<<"\nEnter father name :: ";
   cin>>f_name;

   file.open("C:\\Users\\acer\\Documents\\file4.txt",ios::out|ios::app);

   file.write((char *)this,sizeof(student));
   file.close();

   s.switch_case();
  }

  void student::get()
  {
       int temp;

       cout<<"\nEnter roll no: ";
       cin>>temp;
       fstream file;
       file.open("C:\\Users\\acer\\Documents\\file4.txt",ios::in);
       file.seekg(0,ios::beg);

       while(file.read((char *)this,sizeof(student)));
        {
            if(roll==temp)
            {
                cout<<"\nName ::  "<<name<<endl;
                cout<<"Roll no. :: "<<roll<<endl;
                cout<<"Father name :: "<<f_name<<endl<<endl;
            }
       }

        file.close();

        s.switch_case();
   }

  void student::switch_case()
   {
    int i;
    cout<<"\n1)- Read\n2)- Write\n3)- Exit)\n\nEnter your choice :: ";
    cin>>i;
    switch(i)
    {
        case 1:
          s.put();
          break;

        case 2:
          s.get();
          break;

        case 3:
          exit(0);

        default:
          cout<<"\nWrong choice ";
    }
    }

  int main()
    {
         s.switch_case();
         return 0;
    }

OUTPUT : :

/*  C++ Program to Read and Write student details into a File  */

1)- Read
2)- Write
3)- Exit)

Enter your choice :: 1

Enter roll no ::  123

Enter name :: CodezClub

Enter father name :: www.codezclub.com

1)- Read
2)- Write
3)- Exit)

Enter your choice :: 2

Enter roll no: 123

Name ::  CodezClub
Roll no. :: 123
Father name :: www.codezclub.com


1)- Read
2)- Write
3)- Exit)

Enter your choice :: 3

Process returned 0

Above is the source code for C++ Program to Read and Write student details into a File which is successfully compiled and run on Windows System.The Output of the program is shown above .

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