Can someone please explain me the reasons for output....for this programme

Question

Code:

#include <stdio.h>
void main()
{
float g=123.456789;
printf("\n %.1f",g);
printf("\n %.2f",g);
printf("\n %.3f",g);
printf("\n %.4f",g);
}

Output:

123.5
123.46
123.457
123.4568

My doubts are in comment section

Answer 1

Why is in the output

4 missing in first line
5 missing in second line
6 missing in third line
And
7 missing in fourth line...???

Answer 2

For me the output is: 1231 1232 1233 1234
int main() {
float g=123.456789;
printf("%.f1 ",g);
printf("%.f2 ",g);
printf("%.f3 ",g);
printf("%.f4 ",g);

Answer 3

The fractal portion of the number is rounded up to fit in <x> digit allowed - as specified by format specifier "%.xf".

"%.1f" (only 1 decimal point)
123.456789 => rounded up to 123.5

"%.2f" (2 decimal points)
123.456789 => rounded up to
123.46

"%.3f" (3 decimal points)
123.456789 => rounded up to
123.457

"%.4f" (4 decimal points)
123.456789 => rounded up to
123.4568

Hth, cmiiw