C Exercises: Read the file and store the lines into an array
C File Handling : Exercise-4 with Solution
Write a program in C to read the file and store the lines into an array.
Sample Solution:
C Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define LSIZ 128
#define RSIZ 10
int main(void)
{
char line[RSIZ][LSIZ];
char fname[20];
FILE *fptr = NULL;
int i = 0;
int tot = 0;
printf("\n\n Read the file and store the lines into an array :\n");
printf("------------------------------------------------------\n");
printf(" Input the filename to be opened : ");
scanf("%s",fname);
fptr = fopen(fname, "r");
while(fgets(line[i], LSIZ, fptr))
{
line[i][strlen(line[i]) - 1] = '\0';
i++;
}
tot = i;
printf("\n The content of the file %s are : \n",fname);
for(i = 0; i < tot; ++i)
{
printf(" %s\n", line[i]);
}
printf("\n");
return 0;
}
Sample Output:
Read the file and store the lines into an array : ------------------------------------------------------ Input the filename to be opened : test.txt The content of the file test.txt are : test line 1 test line 2 test line 3 test line 4
Flowchart:
C Programming Code Editor:
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Next: Write a program in C to Find the Number of Lines in a Text File.
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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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