与时间相关的类

与时间相关的类

Calendar

 

import java.util.*;public class Test1 {/** * @param args */public static void main(String[] args) throws Exception{// TODO Auto-generated method stubCalendar cl=Calendar.getInstance(); while(true){cl=Calendar.getInstance();System.out.println(cl.get(cl.YEAR)+"--"+(cl.get(cl.MONTH)+1)+"--"+cl.get(cl.DAY_OF_MONTH)+" "+cl.get(cl.HOUR_OF_DAY)+":"+cl.get(cl.MINUTE));}}}

 

SimpleDateFormat类

import java.text.SimpleDateFormat;import java.util.*;public class Test1 {/** * @param args */public static void main(String[] args) throws Exception{// TODO Auto-generated method stubSimpleDateFormat sdf1=new SimpleDateFormat("yy-mm-dd");SimpleDateFormat sdf2=new SimpleDateFormat("yy年mm月dd日");Date d=sdf1.parse("2003-2-01");System.out.println(sdf2.format(d));}}