Skip to main content

Sample C Program To Illustrate The Concept Of Unions.

# include <stdio.h>

void main()

    union number
        int  n1;
        float n2;
    union number x;

    printf("Enter the value of n1: ");
    scanf("%d", &x.n1);

    printf("Value of n1 = %d", x.n1);
    printf("\nEnter the value of n2: ");

    scanf("%f", &x.n2);
    printf("Value of n2 = %f\n", x.n2);


Enter the value of n1: 10
Value of n1 = 10
Enter the value of n2: 50
Value of n2 = 50.000000

Sample C Program To Find The Size Of A Union.

# include <stdio.h>

void main()

    union sample
        int   m;
        float n;
        char  ch;
    union sample u;
    printf("The size of union = %d\n", sizeof(u));
    /*  initialization */
    u.m = 25;
    printf("%d %f %c\n", u.m, u.n,;
    u.n = 0.2;
    printf("%d %f %c\n", u.m, u.n,; = 'p';
    printf("%d %f %c\n", u.m, u.n,;


The size of union = 4
25 0.000000
1045220557 0.200000
1045220464 0.199999



Popular posts from this blog

Tell Me Something About Yourself - Interview Answers.

Try to introduce some of your most important employment-oriented skills as well as your education and accomplishments to the interviewer. Answer to this question is very important because it positions you for the rest of the interview. That's why this statement is often called the "Positioning Statement".

One should take the opportunity to show his/her communication skills by speaking clearly and concisely in an organized manner. Since there is no right or wrong answer for this question hence it is important to appear friendly.


1) I am a person with strong interpersonal skills and have the ability to get along well with people. I enjoy challenges and looking for creative solutions to problems.

2) Besides the details given in my resume, I believe in character values, vision and action. I am quick in learning from mistakes. I am confident that the various tests that you have conducted will corroborate my competencies aptitude and right attitude for the…

100 C Programs Frequently Asked in Technical Interview.

Sample C Program To Print Welcome Message.

#include <stdio.h>

int main()

printf( "Welcome to C Programming World. \n" );
return 0;



Welcome to C Programming World.

Sample C Program To Accept & Display A Number.
#include <stdio.h>
#include <conio.h>


int number;
printf("Enter an integer ");
scanf("%d", &number);
printf("Integer that you have entered is %d",number);
return 0;



Enter an integer 9
Integer you have entered is 9


-- C Program To Print First Ten(10) Natural Numbers.
-- C Program To Print Fibonacci Series Upto 100.
-- C Program To Check Whether A Number Is Prime Or Not.
-- C Program To Compute The Reverse Of A Number.
-- C Program To Print A Semicolon Without Using A Semicolon.

-- C Program To Display Function Without Using The Main Function.
-- C Program To Print Any Print Statement Without Using Semicolon.
-- C Program To Display Its Own Source Code As Its Output.
-- C Program To Swap Two Strings Usin…