Input and output instruction in c language.
printf() and scanf() are input and output instruction in C language.
Both are written in small alphabets because c is case sensitive
language.
printf():- printf() is predefined functions. It is not a keyword.we can
use printf() to print text as it is and we also print value of expression or
value of variables.
So, printf() is a function in which you can write anything in
paranthesis with double codes.
Ex;
main()
{
clrscr();//it erases old content and it clears screen
printf(“anything you want to print \n”);//\n is used as new line
character
printf(“sachin”);
getch();//taking one character.
}
Note:-In output screen maximum 80 character print horizontally in one
line and and 25 line vertically.
gotoxy(25,13)// this function is used to find your cursor in any area
in your output screen.
/* format specifier
%d for integers.
%f for float.
%lf for double.
*/
scanf():-
scanf() is predefined function which is used to take input from user
ex;
main()
{
Int n;
Clrscr();
scanf(“%d”,n);
getch();
}