C Exercises: Create a file and input text
C File Handling : Exercise-1 with Solution
Write a program in C to create and store information in a text file.
Sample Solution:
#include <stdio.h>
#include <stdlib.h>
int main()
{
char str[1000];
FILE *fptr;
char fname[20]="test.txt";
printf("\n\n Create a file (test.txt) and input text :\n");
printf("----------------------------------------------\n");
fptr=fopen(fname,"w");
if(fptr==NULL)
{
printf(" Error in opening file!");
exit(1);
}
printf(" Input a sentence for the file : ");
fgets(str, sizeof str, stdin);
fprintf(fptr,"%s",str);
fclose(fptr);
printf("\n The file %s created successfully...!!\n\n",fname);
return 0;
}
Sample Output:
Create a file (test.txt) and input text : ---------------------------------------------- Input a sentence for the file : This is the content of the file test.txt The file test.txt created successfully...!!
Flowchart:
C Programming Code Editor:
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C Programming: Tips of the Day
Static variable inside of a function in C
The scope of variable is where the variable name can be seen. Here, x is visible only inside function foo().
The lifetime of a variable is the period over which it exists. If x were defined without the keyword static, the lifetime would be from the entry into foo() to the return from foo(); so it would be re-initialized to 5 on every call.
The keyword static acts to extend the lifetime of a variable to the lifetime of the programme; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over all future calls to foo().
Ref : https://bit.ly/3fOq7XP
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