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public class Date {
    private final int month;
    private final int day;
    private final int year;
    
    public Date(int m, int d, int y) {
        month = m; day = d; year = y;
    }

    public boolean equals(Object x) {
        if (this == x) return true;
        if (x == null) return false;
        if (this.getClass() != x.getClass()) {
            return false;
        }
        Date that = (Date) x;
        if (this.day != that.day) {
            return false;
        }
        if (this.month != that.month) {
            return false;
        }
        if (this.year != that.year) {
            return false;
        }
            return true;
    }
}