将当前时间转化为星期

Java日期与星期相关操作实现

最新推荐文章于 2022-01-26 12:08:34 发布

原创最新推荐文章于 2022-01-26 12:08:34 发布 · 1.6k 阅读

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该博客展示了Java代码实现日期相关操作。包含将当前时间转化为星期、获取小时数、判断日期和小时条件、获取不同格式系统日期等功能。通过`SimpleDateFormat`类对日期进行格式化处理，还提供了主方法进行测试。

package com.zjsw.pub;

import java.util.Date;
import java.text.SimpleDateFormat;
/**
* Title: 将当前时间转化为星期
* Description: 
* Copyright: Copyright (c) 2004
* Company: 
* @author not attributable
* @version 1.0
*/

public class Date2Week {
public Date2Week() {
}
public static String date2week(){
 String week = null;
 Date dt = new Date();
 SimpleDateFormat sdformat = new SimpleDateFormat("E");
 week = sdformat.format(dt);
 return week;
}
public static String getHour(){
 String hour = null;
 Date dt = new Date();
 SimpleDateFormat sdformat = new SimpleDateFormat("HH");
 hour = sdformat.format(dt);
 return hour;
}
public static boolean judgeDate(String week,String hour){
 boolean flag = false;
 String week_1 = Date2Week.date2week();
 String hour_1 = Date2Week.getHour();
 if(week != null){
 week = week.trim();
 }
 if(hour != null){
 hour = hour.trim();
 }
 if(week.equals(week_1) && Integer.parseInt(hour)<=Integer.parseInt(hour_1)){
 flag = true;
 }
 return flag;
}
public static String getSysdate(String type){
 String dtime = null;
 Date dt = new Date();
 SimpleDateFormat sdformat = null;
 if(type.equals("day")){
 sdformat = new SimpleDateFormat("yyyy-MM-dd");
 }
 if(type.equals("ss")){
 sdformat = new SimpleDateFormat("yyyyMMddHHmmss");
 }
 dtime = sdformat.format(dt);
 return dtime;
}

public static String getSysdate(){
   String dtime = null;
   Date dt = new Date();
   SimpleDateFormat sdformat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss ");
   dtime = sdformat.format(dt);
   return dtime;
}

public static void main(String [] args)throws Exception{
    //String dt = getSysdate("ss");
    //System.out.println("dt"+dt);
    String week = Date2Week.date2week();
    System.out.println("week:"+week);
}
}