C Error Handling

#include <stdio.h>
int main()
{
char ch[100];
FILE *fptr;     //File pointer declaration
fptr = fopen("info.txt", "w ");     //the function fopen opens the text file
fputs("This function is used to change the position of file pointer", fptr);
fseek(fptr, 5, 0);
fgets(ch, 50, fptr);
if(ferror(fptr))
printf("\nError:Reading a file is not allowed in write mode. ");
fclose(fptr);     //the function closes the opened file
return 0;
}

#include <stdio.h>
int main()
{
char ch[100];
FILE *fptr;     //File pointer declaration
fptr = fopen("info1.txt", "r ");     //the function fopen opens the text file
if(fptr == NULL)
{
perror("folk text file ");
}
fclose(fptr);     //the function closes the opened file
return 0;
}