package com.util;
import java.text.DateFormat;
import java.util.Calendar;
import java.util.Date;
public class Test {
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) {
Test t= new Test();
t.getTimeByDate();
System.out.println( "****************************" );
t.getTimeByCalendar();
}
}
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