package com.feicuiedu.test;
import java.text.DateFormat;
import java.util.Calendar;
import java.util.Date;
public class date {
public void getTimeByDate(){
Date date = new Date();
DateFormat df1 = DateFormat.getDateInstance();//日期格式,精确到日
System.out.println(df1.format(date));
DateFormat df2 = DateFormat.getDateTimeInstance();//可以精确到时分秒
System.out.println(df2.format(date));
DateFormat df3 = DateFormat.getTimeInstance();//只显示出时分秒
System.out.println(df3.format(date));
DateFormat df4 = DateFormat.getDateTimeInstance(DateFormat.FULL,DateFormat.FULL); //显示日期,周,上下午,时间(精确到秒)
System.out.println(df4.format(date));
DateFormat df5 = DateFormat.getDateTimeInstance(DateFormat.LONG,DateFormat.LONG); //显示日期,上下午,时间(精确到秒)
System.out.println(df5.format(date));
DateFormat df6 = DateFormat.getDateTimeInstance(DateFormat.SHORT,DateFormat.SHORT); //显示日期,上下午,时间(精确到分)
System.out.println(df6.format(date));
DateFormat df7 = DateFormat.getDateTimeInstance(DateFormat.MEDIUM,DateFormat.MEDIUM); //显示日期,时间(精确到分)
System.out.println(df7.format(date));
}
public void getTimeByCalendar(){
Calendar cal = Calendar.getInstance();
int year = cal.get(Calendar.YEAR);//获取年份
int month=cal.get(Calendar.MONTH);//获取月份
int day=cal.get(Calendar.DATE);//获取日
int hour=cal.get(Calendar.HOUR);//小时
int minute=cal.get(Calendar.MINUTE);//分
int second=cal.get(Calendar.SECOND);//秒
int WeekOfYear = cal.get(Calendar.DAY_OF_WEEK);//一周的第几天
System.out.println("现在的时间是:公元"+year+"年"+month+"月"+day+"日 "+hour+"时"+minute+"分"+second+"秒 星期"+WeekOfYear);
}
public static void main(String[] args) {
date t=new date();
t.getTimeByDate();
System.out.println("****************************");
t.getTimeByCalendar();
}
}