Method equals

ch4/BoardDto.java:14–20

(Object o)

    private Date    reg_date;

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        BoardDto boardDto = (BoardDto) o;
        return Objects.equals(bno, boardDto.bno) && Objects.equals(title, boardDto.title) && Objects.equals(content, boardDto.content) && Objects.equals(writer, boardDto.writer);
    }

    @Override
    public int hashCode() {