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
