C Exercises: Write multiple lines in a text file and read the file
3. Write Multiple Lines to File
Write a program in C to write multiple lines to a text file.
Sample Solution:
C Code:
#include <stdio.h>
int main ()
{
FILE * fptr;
int i,n;
char str[100];
char fname[20]="test.txt";
char str1;
printf("\n\n Write multiple lines in a text file and read the file :\n");
printf("------------------------------------------------------------\n");
printf(" Input the number of lines to be written : ");
scanf("%d", &n);
printf("\n :: The lines are ::\n");
fptr = fopen (fname,"w");
for(i = 0; i < n+1;i++)
{
fgets(str, sizeof str, stdin);
fputs(str, fptr);
}
fclose (fptr);
/*-------------- read the file -------------------------------------*/
fptr = fopen (fname, "r");
printf("\n The content of the file %s is :\n",fname);
str1 = fgetc(fptr);
while (str1 != EOF)
{
printf ("%c", str1);
str1 = fgetc(fptr);
}
printf("\n\n");
fclose (fptr);
return 0;
}
Sample Output:
Write multiple lines in a text file and read the file :
------------------------------------------------------------
Input the number of lines to be written : 4
:: The lines are ::
test line 1
test line 2
test line 3
test line 4
The content of the file test.txt is :
test line 1
test line 2
test line 3
test line 4
Flowchart:
For more Practice: Solve these Related Problems:
- Write a C program to write multiple lines entered by the user to a file, then append a summary line at the end.
- Write a C program to write a list of strings stored in an array to a file, one string per line.
- Write a C program to write user-provided paragraphs to a file and separate each paragraph with a blank line.
- Write a C program to accept multiple lines from the user and write them to a file while numbering each line.
Go to:
PREV : Read Existing File.
NEXT : Read File to Array.
C Programming Code Editor:
Have another way to solve this solution? Contribute your code (and comments) through Disqus.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.