 public class DateclassDemo{
       //Ա
       int year,month,day;
       //Ա
   	void  setDate(int y,int m ,int d){
         	year=y;  month=m;  day=d;
    	}
    	boolean IsLeapYear(){
         	if(year %400==0|| year %4==0&& year %100!=0)  return true;
        	 else  return false;
	}
	public void showDate(){
         	System.out.println(year +"-"+month +"-"+day);
	}
}
