Question

How to create and write content to a text file in C

Answer 1

#include <stdio.h>
#include <stdlib.h>
   
void readFile(char file[]) {
    FILE *fp = fopen(file, "r");
        
    char ch;
    while ((ch = fgetc(fp)) != EOF)
        putchar(ch);
 
    fclose(fp);
}
   
int main()
{
    char file[100] = "d:\\data.txt";
   
    FILE *fp = fopen(file, "w");  // create
    if (fp == NULL) {
        printf("Error open file\n");
        exit(EXIT_FAILURE);
    }
   
    fputs("c c++ c#", fp); // write
    fputs("\njava python", fp);  // write
   
    fclose(fp);
       
    readFile(file);
   
    return 0;
}
    
      
      
      
/*
run:
      
c c++ c#
java python 
   
*/

 

 

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