C Programming - Input / Output
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How do I solve C Programming quiz problems based on "Input / Output"?
You can easily solve C Programming quiz problems based on "Input / Output" by practising the given exercises, including shortcuts and tricks.
Declaration: char *fgets(char *s, int n, FILE *stream);
fgets reads characters from stream into the string s. It stops when it reads either n - 1 characters or a newline character, whichever comes first.
Therefore, the string str contain "I am a boy\n\0"
FILE *fp;
fp = fopen("source.txt", "rb");
The file source.txt will be opened in the binary mode.
#include<stdio.h>
int main()
{
FILE *fp;
fp=fopen("trial", "r");
return 0;
}
The fp is a structure which contains a char pointer which points to the first character of a file.
FILE *fp;
fp = fopen("NOTES.TXT", "r+");
r+ Open an existing file for update (reading and writing).
#include<stdio.h>
float a=3.14;
double b=3.14;
To print a float value, %f is used as format specifier.
To print a double value, %lf is used as format specifier.
Therefore, the answer is printf("%f %lf", a, b);