union_ex_2.c

#include <stdio.h>

union student  {
    char letterGrade;
    int roundedGrade;
    float exactGrade;
};

int main()  {
    union student record1;
    union student record2;

    // assigning values to record1 union variable
    record1.letterGrade = 'B';
    record1.roundedGrade = 87;
    record1.exactGrade = 86.50;

     printf("Union record1 values example\n");
     printf(" Letter Grade: %c \n\n", record1.letterGrade);
     printf(" Rounded Grade: %d \n", record1.roundedGrade);
     printf(" Exact Grade: %f \n\n", record1.exactGrade);

     // assigning values to record2 union variable
     printf("Union record2 values example\n");
     record2.letterGrade = 'A';
     printf(" Letter Grade: %c \n", record2.letterGrade);

     record2.roundedGrade = 100;
     printf(" Rounded Grade: %d \n", record2.roundedGrade);

     record2.exactGrade = 99.50;
     printf(" Exact Grade: %f \n", record2.exactGrade);
     return 0;
}