Name: Sukhmanpreet kaur ROLL.
NO: 2324807
PRACTICAL NO.-29
Aim: Write a program to read the contents of a file and copy these contents to another file.
Software Used: CODE Blocks
Procedure:
1: The program declares two file pointers, source_file and destination_file.
2: The program opens the source file in read mode ("r").
3: The program checks if the source file was opened successfully. If not, it prints an error
message and exits.
4: The program opens the destination file in write mode ("w").
5: The program checks if the destination file was opened successfully. If not, it prints an error
message, closes the source file, and exits.
6: The program reads the contents of the source file character by character using fgetc().
7: The program writes each character to the destination file using fputc().
8: The program repeats steps 6-7 until the end of the source file is reached.
9: The program closes both the source and destination files using fclose().
10: The program prints a success message to the console.
Source code:
#include <stdio.h>
#include <stdlib.h>
int main() {
// Declare file pointers
FILE *source_file, *destination_file;
// Open the source file in read mode
source_file = fopen("source.txt", "r");
if (source_file == NULL) {
printf("Error opening source file\n");
return 1; }
Name: Sukhmanpreet kaur ROLL.NO: 2324807
// Open the destination file in write mode
destination_file = fopen("destination.txt", "w");
if (destination_file == NULL) {
printf("Error opening destination file\n");
fclose(source_file);
return 1;
}
// Read and copy contents from source file to destination file
char c;
while ((c = fgetc(source_file)) != EOF) {
fputc(c, destination_file);
}
// Close the files
fclose(source_file);
fclose(destination_file);
printf("File open successfully and copied successfully\n");
return 0;
}
Output:
Name: Sukhmanpreet kaur ROLL.NO: 2324807
PRACTICAL NO.-30
Aim: Write a program to count characters, words and lines in a text file
Software Used: CODE Blocks
Procedure:
1: The program declares a file pointer file and opens the file example.txt in read mode ("r").
2: The program initializes three counters: char_count, word_count, and line_count, to keep track
of the number of characters, words, and lines in the file.
3: The program reads the file character by character using fgetc().
4: For each character read, the program increments the char_count.
5: If the character read is a newline character ('\n'), the program increments the line_count.
6: If the character read is a space or newline character, the program increments the word_count.
7: The program repeats steps 3-6 until the end of the file is reached.
8: After reading the entire file, the program increments the word_count one more time to account
for the last word.
9: The program prints the counts to the console, including the number of characters, words, and
lines.
10: Finally, the program closes the file using fclose().
Source code:
#include <stdio.h>
#include <stdlib.h>
int main() {
// Declare file pointer
FILE *file;
// Open the file in read mode
file = fopen("example.txt", "r");
Name: Sukhmanpreet kaur ROLL.NO: 2324807
if (file == NULL) {
printf("Error opening file\n");
return 1;
}
// Initialize counters
int char_count = 0;
int word_count = 0;
int line_count = 0;
// Read the file character by character
char c;
while ((c = fgetc(file)) != EOF) {
// Increment character count
char_count++;
// Check for newline character to increment line count
if (c == '\n') {
line_count++;
}
// Check for space or newline character to increment word count
if (c == ' ' || c == '\n') {
word_count++;
}
}
// Increment word count for the last word
Name: Sukhmanpreet kaur ROLL.NO: 2324807
word_count++;
// Print the counts
printf("Characters: %d\n", char_count);
printf("Words: %d\n", word_count);
printf("Lines: %d\n", line_count);
// Close the file
fclose(file);
return 0;
}
Output:
