public class  MyDate{
private  int  year;
private  int  month;
private  int  day;
public MyDate() {
     year = 1900;
     month = 1;
     day = 1;
}
public  void  setYear(int y) { year = y; }
public  void  setMonth(int m) { month = m; }
public  void  setDay(int d) { day = d; }
public  int  getYear() { return year; }
public  int  getMonth() { return month; }
public  int  getDay() { return day; }
public  void  display(){
      System.out.println("year-month-day:" + 
year + '-' + month + '-' + day);
}
}