c programming data types and format specifier

1. Data Type
A set of data which specifies the
possible range of value in program.

2. Basic data types of c
Int
Float
Char
Double
2 Byte
4 Byte
1 Byte
8 Byte

3. Format Specifier
Consist of sign with one alphabet and
specifies the types of value given to or
from the program.

4. Format Specifier Data Type
%d Int
%ld Long int
%f Float
%c Char
%s String
%lf Double

5. Input Statement
Library function Scanf() can be used for
entering input data.
Syntax:
Scanf(“Format Spceifier”,address1..);

6. Output Statement
Library Function Printf() Can be used to write
computer memory to standared output
device (monitor).
Syntax
Printf(“Message with format specifier”,variable name);

7. //Program to find the number even or odd.
1. #include<stdio.h>
2. void main()
3. {
4. int a;
5. clrscr();
6. printf(“Enter the number”);
7. scanf(“%d”,&a);
8. if(a/2==0)
9. {
10. printf(“%d is even number”,a);
11. }
12. else
13. {
14. printf(“%d is odd number”,a);
15. }
16. getch();
17. }