Introduction Examples

Program to Display "Hello, World!"

#include <stdio.h>
#include <conio.h>
void main()
{
    // printf() displays the string inside quotation
    printf("tutorialsforcprogramming.blogspot.com");
    getch();
}

Output

tutorialsforcprogramming.blogspot.com

Get differnet value from user & print it on diaplay

#include <stdio.h>
#include <conio.h>
void main()
{
    int in;
    float fn;
    char c; 

    printf("Enter an integer: ");  
    scanf("%d", &in);                //  %d is used for get or print integer
    printf("You entered: %d", in);

    printf("Enter an float: ");  
    scanf("%f", &fn);                //  %f is used for get or print float
    printf("You entered: %f", fn);

    printf("Enter an character: ");  //  %c is used for get or print character
    scanf("%c", &c);                 
    printf("You entered: %c", c);

    getch();
}

Output

Enter an integer: 5
You entered: 5
Enter an float: 5.005
You entered: 5.005
Enter an character: D
You entered: D

Perform some operation on integer

#include <stdio.h>
#include <conio.h>
void main()
{
    int a=5;b=10,c;
    c = b + a;
    printf("b + a = %d", c);

    c = b - a;
    printf("b - a = %d", c);

    c = b * a;
    printf("b * a = %d", c);

    c = b / a;
    printf("b / a = %d", c);

}

Output

b + a = 15
b - a = 5
b * a = 50
b / a = 2

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