Reading from a File

#include <stdio.h>

int main() {
    FILE *filePtr;
    char buffer[255];

    // Open the file in read mode ("r")
    filePtr = fopen("sample.txt", "r");

    // Check if the file exists
    if (filePtr == NULL) {
        printf("Error! File not found.\n");
        return 1;
    }

    // Read and display the content line by line
    while (fgets(buffer, 255, filePtr) != NULL) {
        printf("%s", buffer);
    }

    // Close the file
    fclose(filePtr);

    return 0;
}

This program reads the content from the sample.txt file created in the previous example and prints it to the console.

Explanation:

fgets(buffer, 255, filePtr): Reads a line of text from the file and stores it in the buffer array. The reading continues until the end of the file.
fclose(filePtr): Closes the file after reading is complete.

Problem Solving using C Language

File Handling

Reading from a File

Explanation: