C Program to Define a Number Odd or Even

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The C Program is given below is a program to define a number Odd or Even. When you will run this program then you will be asked to provide a number and you will see Enter the Number You Want to Check:  text on the screen. Then if you provide 5 and press Enter Key, you will get 5 is an Odd Number in the result. And if you provide 8, you will get 8 is an Odd Number.

1. #include<stdio.h>
2. void main()
3. {
4. int a;
5. printf("Enter the Number You Want to Check: ");
6. scanf("%d",&a);
7. if(a%2==1)
8. {
9.   printf("%d is an Odd Number",a);
10. }
11. else
12. {
13.   printf("%d is an Even Number",a);
14. }
15. }

 Output for the Above Program 

After running the program, you will get a message like...

Enter the Number You Want to Check: _

You may give any number you want to check if Even or Odd. If you provide the number 9 and press the Enter Key, then you will get the following result.

9 is an Odd Number

Description of the above Codes

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 First Line 
In the first line there is written #include<stdio.h>. stdio.h is a Header File. So I have commanded the Computer to include the Header File stdio.h by the codes #include<stdio.h>. conio.h and math.h are also two Header files. If you want to add them then you have to write #include<conio.h> to include conio.h header file and #include<math.h> to add the math.h header file. When you need to add two or more header files in a program then you have to write like...

#include<stdio.h>

#include<conio.h>

#include<math.h>

 Fourth Line 
In the fourth line there is written int a;. Here a is a variable where we will store the number we will provide from keyboard.

 Second Line 

In the Second Line I have written void main(). This is the main part of a C++ Program. You have to keep inside of void main() all of the command you want to use. The structure of void main() is given below.

void main()

{

Commads you want to use

}

 Fifth Line 

In the fifth line I have written printf("Enter the Number You Want to Check: ");.  Here printf is a command included in stdio.h header file. We have used this command to show some text in the output. The structure of printf is printf("Enter the Number You Want to Check: ");  That means you have to keep the text inside of the two double quotation (""). The program will show the text you will keep inside the Double Quotation. Though C++ does not support Capital Letter but you may use it here. That means you may write printf("YOUR TEXT"); if you want.

 Sixth Line 
In the sixth line there is written scanf("%d",&a);. By this line the computer will store the provided integer number in the memory location a.