convert lowercase to uppercase using files

ALGORITHM:

      Step 1:  Include the header files

Step 2:  Declare the variables.

Step 3:  Read the file name.

Step 4:  open the file to write the contents.

Step 5:  writing the file contents up to reach a particular condition.

Step 6:   write the file contents as uppercase.

Step 7:   open the file to read the contents.

PROGRAM:

#include<fstream.h>

#include<stdio.h>

#include<ctype.h>

#include<string.h>

#include<iostream.h>

#include<conio.h>

void main()

{

char c,u;

             char fname[10];

             clrscr();

             ofstream out;

             cout<<"Enter File Name:";

             cin>>fname;

             out.open(fname);

             cout<<"Enter the text(Enter # at end)\n";   //write contents to file

             while((c=getchar())!='#')

             {

                           u=c-32;

                           out<<u;

             }

             out.close();

             ifstream in(fname);        //read the contents of file

             cout<<"\n\n\t\tThe File contains\n\n";

             while(in.eof()==0)

             {

                           in.get(c);

                           cout<<c;

             }

             getch();

}

SAMPLE OUTPUT:

Enter File Name: two.txt

Enter contents to store in file (enter # at end)

oops programming

The File Contains

OOPS PROGRAMMING

RESULT:

               Thus a C++ program to convert lowercase to uppercase using files is implemented successfully