Simple Program for Read & Write File Operation (Convert lowercase...

program to convert lowercase to uppercase.

Simple Program for Reading & Write File Operation (Convert lowercase to uppercase) Algorithm/Steps:

• STEP 1: Start the program.
• 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.
• STEP6: write the file contents as uppercase.
• STEP7: open the file to read the contents.
• STEP 8: Stop the program.

Read & Write File Operation (Convert lowercase to uppercase) 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

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