Date與SimpleDateFormat

package com.ls.java8.date;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class DateDemo1 {

public static void main(String[] args) throws Exception {
    long cur=System.currentTimeMillis();
    Date date =new Date(cur);
    System.out.println(date);
    System.out.println(date.getTime());//輸出對象信息

    //將日期變爲字符串
    SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss:SSS");
    String s=sdf.format(date);
    System.out.println(s);

    //將字符串變爲日期
    SimpleDateFormat sdf1=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss:SSS");
    Date date1=sdf.parse(s);
    System.out.println(date1);
}

}