learning c programming from ABC

1. PRESENTED BY
SONAKSHI SARKAR

2. A program is set of
instructions .

4. Ans : Computer language
(which is C in this case )

5. Alphabets Digits and
Special symbols
Constants Variables
and keywords
Instructions
Program

6. C
constants
Primary
constants
Integer
constants
Real
constants
Character
constants
Secondary
constants
Array

7. ENTITY THAT VARIES
DURING PROGRAM EXECUTION

13. program header comment
preprocessor directives (if any)
int main ( void )
{
statement(s)
return 0 ;
}

14. /* Filename: hello.c
Author: BT 414
Date written: 17/10/2011
Description: This program prints the greeting
“Hello, World!”
*/
#include <stdio.h>
int main ( void )
{
printf ( “Hello, World!n” ) ;
return 0 ;
}

15. #include <stdio.h>
int main()
{
int num;
printf("Enter a number you want to check.n”);
scanf("%d",&num);
if((num%2)==0) //checking whether remainder is 0 or not.
printf("%d is even.",num);
else
printf("%d is odd.",num);
return 0;
} Output 1
Enter a number you want to check.
25
25 is odd.
Output 2
Enter a number you want to check.
2
2 is even.