public enum Persons {
JOE("Joe", "Peterson", 1990);

    private String first_name;
    private String last_name;
    private int born;

    Persons(String first_name, String last_name, int born) {
        this.first_name = first_name;
        this.last_name = last_name;
        this.born = born;
    }

    public String getFirst_name() {
        return first_name;
    }

    public void setFirst_name(String first_name) {
        this.first_name = first_name;
    }
}