import java.util.Date ;
public class DateDemo01{
public static void main(String args[]){
Date date = new Date() ; // 直接实例化Date对象
System.out.println("当前日期为:" + date) ;
}
};
import java.util.* ;
public class DateDemo02{
public static void main(String args[]){
Calendar calendar = new GregorianCalendar(); // 实例化Calendar类对象
System.out.println("YEAR: " + calendar.get(Calendar.YEAR));
System.out.println("MONTH: " + (calendar.get(Calendar.MONTH) + 1));
System.out.println("DAY_OF_MONTH: " + calendar.get(Calendar.DAY_OF_MONTH));
System.out.println("HOUR_OF_DAY: " + calendar.get(Calendar.HOUR_OF_DAY));
System.out.println("MINUTE: " + calendar.get(Calendar.MINUTE));
System.out.println("SECOND: " + calendar.get(Calendar.SECOND));
System.out.println("MILLISECOND: " + calendar.get(Calendar.MILLISECOND));
}
};