日期与时间

package com.company.K;import java.text.SimpleDateFormat;import java.util.Calendar;import java.util.Date;import java.util.TimeZone;/** * Created by admin on 2017/11/22. */public class A {//日期    public static void main(String[] args) {        System.out.println(new Date());        SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd:HH:mm:ss");        System.out.println(sdf.format(new Date()));        Date d=new Date();        d.setYear(99);//在1900的基础上加多少年        System.out.println(d);        Calendar c=Calendar.getInstance();        c.setTimeZone(TimeZone.getTimeZone("GMT+8"));//中国时区        System.out.print(c.get(Calendar.YEAR));        System.out.print(c.get(Calendar.MONTH)+1);        System.out.print(c.get(Calendar.DAY_OF_MONTH));        System.out.print(c.get(Calendar.HOUR_OF_DAY));        System.out.print(c.get(Calendar.MINUTE));        System.out.print(c.get(Calendar.SECOND));    }}