Memory sharing in unions

/* 2002.c: Memory sharing in unions */
#include <stdio.h>

main(void)
{
    union employee {
    int start_year;
    int dpt_code;
    int id_number;
    } info;

    /* initialize start_year */
    info.start_year = 1997;
    /* initialize dpt_code */
    info.dpt_code = 8;
    /* initialize id */
    info.id_number = 1234;

    /* display content of union */
    printf("Start Year: %d\n", info.start_year);
    printf("Dpt. Code: %d\n", info.dpt_code);
    printf("ID Number: %d\n", info.id_number);
    return 0;
}