C Programming :: Input / Output

1. fputs function is used to

2. The function fprintf is used in a program

3. What is the following C Program doing?

void main ()
{
char line [80];
gets (line);
puts (line);
}

4. if i,j,k are integers, the scanf function to enter i,j,k such that i is decimal,j is octal and k is hexadecimal would be

5. What would be the output of the following C program if input to the program is 'e'?

void main ()
{
char lower, upper;
lower = getchar();
upper= toupper (lower);
putchar (upper);
}

6. float x, y, z;
scanf ("%f %f", &x, &y);

If input stream contains "4.2 3 2.3 ..."
What will x and y contain after scanf?