DIFFERENCE BETWEEN STRUCTURE & UNION

Structure take individual memory space for each variable while union takes largest memory space & all variable share its.  Example of Structure

struct emp {  int code;  char name[20];  float sal; }; intà2bytes stringà20bytes floatà4bytes Total Memory occupiedà26bytes Example of Union union emp {  int code;  char name[20];  float sal; }; Total Memory occupied à20bytes