Basic programming of Union

C Programming Language / Union in C Language

Program:

#include<stdio.h>
#include<string.h>
 
union student 
{
            char name[20];
            char subject[20];
            float percentage;
};
 
int main() 
{
    union student record1;
    union student record2;
 
    // assigning values to record1 union variable
       strcpy(record1.name, "Raju");
       strcpy(record1.subject, "Maths");
       record1.percentage = 86.50;
 
       printf("Union record1 values example\n");
       printf(" Name       : %s \n", record1.name);
       printf(" Subject    : %s \n", record1.subject);
       printf(" Percentage : %f \n\n", record1.percentage);
 
    // assigning values to record2 union variable
       printf("Union record2 values example\n");
       strcpy(record2.name, "Mani");
       printf(" Name       : %s \n", record2.name);
 
       strcpy(record2.subject, "Physics");
       printf(" Subject    : %s \n", record2.subject);
 
       record2.percentage = 99.50;
       printf(" Percentage : %f \n", record2.percentage);
       return 0;
}

Output:

 Union record1 values example
 Name       :
 Subject    :
 Percentage : 86.500000

Union record2 values example
 Name       : Mani
 Subject    : Physics
 Percentage : 99.500000
Press any key to continue . . .

Explanation:

union car
{
  char name[50];
  int price;
};