1、import java.util.Date;导入Date类代码如下：public class TestDate { public static void main(String[] args) { int year=2016; int month=11; int day=5; Date date1=new Date(year-1900,month-1,day); Date date2=new Date(year-1900,month,day); Date date=new Date(year-1900,month-1,day+10); System.out.println(date1+"\n"+date2+"\n"+date); if(date.after(date1)&&date.before(date2)){ System.out.println("Date between"+(date1.getYear()+1900)+"."+(date1.getMonth()+1)+"."+date1.getDate()+" and "+(date2.getYear()+1900)+"."+(date2.getMonth()+1)+"."+date2.getDate()); } } }由于已推荐不使用，所以被注解了。@Deprecated：表示方法已过时，不建议使用。
2、其构造方法包括两个：Date（int year-1990,int month -1,int date）Date ( long date)长整型指定日期
3、方法包括对两个日期对象的比较和获得或设置日期对象的参数。
4、设置参数：System.out.println(date.getYear()+1990); date.setYear(year+1-1990); System.out.println(date.getYear()+1990);
5、获得参数：System.out.println(date.getYear()+1990);
6、补充Calendar类import java.util.Calendar;代码： Calendar calendar = Calendar.getInstance(); Date datec = calendar.getTime(); System.out.println(datec); calendar.set(Calendar.YEAR, 2011); System.out.println(calendar.getTime());
7、 比较代码： Calendar a= Calendar.getInstance(); a.set烫喇霰嘴(2016, 11,11, 19,50, 2); a.set(Calendar.MILLISECOND, 0); Calendar c= Calendar.getInstance(); c.set(2016, 12,12, 19,50, 3); c.set(Calendar.MILLISECOND, 0); System.out.println(a.compareTo(c));
