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湖南
-
- package com.hefeng.test;
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-
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import java.text.DateFormat;
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import java.text.ParsePosition;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.GregorianCalendar;
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public class TimeTest {
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private int weeks = 0;
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private int MaxDate;
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private int MaxYear;
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public static void main(String[] args) {
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TimeTest tt = new TimeTest();
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System.out.println("获取当天日期:"+tt.getNowTime("yyyy-MM-dd"));
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System.out.println("获取本周一日期:"+tt.getMondayOFWeek());
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System.out.println("获取本周日的日期~:"+tt.getCurrentWeekday());
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System.out.println("获取上周一日期:"+tt.getPreviousWeekday());
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System.out.println("获取上周日日期:"+tt.getPreviousWeekSunday());
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System.out.println("获取下周一日期:"+tt.getNextMonday());
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System.out.println("获取下周日日期:"+tt.getNextSunday());
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System.out.println("获得相应周的周六的日期:"+tt.getNowTime("yyyy-MM-dd"));
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System.out.println("获取本月第一天日期:"+tt.getFirstDayOfMonth());
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System.out.println("获取本月最后一天日期:"+tt.getDefaultDay());
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System.out.println("获取上月第一天日期:"+tt.getPreviousMonthFirst());
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System.out.println("获取上月最后一天的日期:"+tt.getPreviousMonthEnd());
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System.out.println("获取下月第一天日期:"+tt.getNextMonthFirst());
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System.out.println("获取下月最后一天日期:"+tt.getNextMonthEnd());
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System.out.println("获取本年的第一天日期:"+tt.getCurrentYearFirst());
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System.out.println("获取本年最后一天日期:"+tt.getCurrentYearEnd());
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System.out.println("获取去年的第一天日期:"+tt.getPreviousYearFirst());
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System.out.println("获取去年的最后一天日期:"+tt.getPreviousYearEnd());
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System.out.println("获取明年第一天日期:"+tt.getNextYearFirst());
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System.out.println("获取明年最后一天日期:"+tt.getNextYearEnd());
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System.out.println("获取本季度第一天到最后一天:"+tt.getThisSeasonTime(11));
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System.out.println("获取两个日期之间间隔天数2008-12-1~2008-9.29:"+TimeTest.getTwoDay("2008-12-1","2008-9-29"));
- }
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public static String getTwoDay(String sj1, String sj2) {
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SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd");
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long day = 0;
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try {
- java.util.Date date = myFormatter.parse(sj1);
- java.util.Date mydate = myFormatter.parse(sj2);
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day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);
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} catch (Exception e) {
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return "";
- }
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return day + "";
- }
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public static String getWeek(String sdate) {
- Date date = TimeTest.strToDate(sdate);
- Calendar c = Calendar.getInstance();
- c.setTime(date);
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return new SimpleDateFormat("EEEE").format(c.getTime());
- }
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-
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public static Date strToDate(String strDate) {
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SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
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ParsePosition pos = new ParsePosition(0);
- Date strtodate = formatter.parse(strDate, pos);
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return strtodate;
- }
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public static long getDays(String date1, String date2) {
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if (date1 == null || date1.equals(""))
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return 0;
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if (date2 == null || date2.equals(""))
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return 0;
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SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd");
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java.util.Date date = null;
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java.util.Date mydate = null;
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try {
- date = myFormatter.parse(date1);
- mydate = myFormatter.parse(date2);
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} catch (Exception e) {
- }
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long day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);
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return day;
- }
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public String getDefaultDay(){
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String str = "";
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SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
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- Calendar lastDate = Calendar.getInstance();
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lastDate.set(Calendar.DATE,1);
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lastDate.add(Calendar.MONTH,1);
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lastDate.add(Calendar.DATE,-1);
- str=sdf.format(lastDate.getTime());
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return str;
- }
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public String getPreviousMonthFirst(){
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String str = "";
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SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
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- Calendar lastDate = Calendar.getInstance();
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lastDate.set(Calendar.DATE,1);
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lastDate.add(Calendar.MONTH,-1);
- str=sdf.format(lastDate.getTime());
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return str;
- }
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public String getFirstDayOfMonth(){
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String str = "";
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SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
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- Calendar lastDate = Calendar.getInstance();
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lastDate.set(Calendar.DATE,1);
- str=sdf.format(lastDate.getTime());
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return str;
- }
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public String getCurrentWeekday() {
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weeks = 0;
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int mondayPlus = this.getMondayPlus();
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GregorianCalendar currentDate = new GregorianCalendar();
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currentDate.add(GregorianCalendar.DATE, mondayPlus+6);
- Date monday = currentDate.getTime();
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- DateFormat df = DateFormat.getDateInstance();
- String preMonday = df.format(monday);
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return preMonday;
- }
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public String getNowTime(String dateformat){
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Date now = new Date();
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SimpleDateFormat dateFormat = new SimpleDateFormat(dateformat);
- String hehe = dateFormat.format(now);
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return hehe;
- }
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private int getMondayPlus() {
- Calendar cd = Calendar.getInstance();
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int dayOfWeek = cd.get(Calendar.DAY_OF_WEEK)-1;
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if (dayOfWeek == 1) {
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return 0;
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} else {
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return 1 - dayOfWeek;
- }
- }
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public String getMondayOFWeek(){
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weeks = 0;
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int mondayPlus = this.getMondayPlus();
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GregorianCalendar currentDate = new GregorianCalendar();
- currentDate.add(GregorianCalendar.DATE, mondayPlus);
- Date monday = currentDate.getTime();
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- DateFormat df = DateFormat.getDateInstance();
- String preMonday = df.format(monday);
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return preMonday;
- }
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public String getSaturday() {
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int mondayPlus = this.getMondayPlus();
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GregorianCalendar currentDate = new GregorianCalendar();
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currentDate.add(GregorianCalendar.DATE, mondayPlus + 7 * weeks + 6);
- Date monday = currentDate.getTime();
- DateFormat df = DateFormat.getDateInstance();
- String preMonday = df.format(monday);
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return preMonday;
- }
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public String getPreviousWeekSunday() {
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weeks=0;
- weeks--;
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int mondayPlus = this.getMondayPlus();
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GregorianCalendar currentDate = new GregorianCalendar();
- currentDate.add(GregorianCalendar.DATE, mondayPlus+weeks);
- Date monday = currentDate.getTime();
- DateFormat df = DateFormat.getDateInstance();
- String preMonday = df.format(monday);
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return preMonday;
- }
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public String getPreviousWeekday() {
- weeks--;
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int mondayPlus = this.getMondayPlus();
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GregorianCalendar currentDate = new GregorianCalendar();
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currentDate.add(GregorianCalendar.DATE, mondayPlus + 7 * weeks);
- Date monday = currentDate.getTime();
- DateFormat df = DateFormat.getDateInstance();
- String preMonday = df.format(monday);
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return preMonday;
- }
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public String getNextMonday() {
- weeks++;
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int mondayPlus = this.getMondayPlus();
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GregorianCalendar currentDate = new GregorianCalendar();
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currentDate.add(GregorianCalendar.DATE, mondayPlus + 7);
- Date monday = currentDate.getTime();
- DateFormat df = DateFormat.getDateInstance();
- String preMonday = df.format(monday);
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return preMonday;
- }
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public String getNextSunday() {
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int mondayPlus = this.getMondayPlus();
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GregorianCalendar currentDate = new GregorianCalendar();
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currentDate.add(GregorianCalendar.DATE, mondayPlus + 7+6);
- Date monday = currentDate.getTime();
- DateFormat df = DateFormat.getDateInstance();
- String preMonday = df.format(monday);
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return preMonday;
- }
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private int getMonthPlus(){
- Calendar cd = Calendar.getInstance();
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int monthOfNumber = cd.get(Calendar.DAY_OF_MONTH);
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cd.set(Calendar.DATE, 1);
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cd.roll(Calendar.DATE, -1);
- MaxDate=cd.get(Calendar.DATE);
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if(monthOfNumber == 1){
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return -MaxDate;
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}else{
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return 1-monthOfNumber;
- }
- }
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public String getPreviousMonthEnd(){
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String str = "";
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SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
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- Calendar lastDate = Calendar.getInstance();
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lastDate.add(Calendar.MONTH,-1);
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lastDate.set(Calendar.DATE, 1);
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lastDate.roll(Calendar.DATE, -1);
- str=sdf.format(lastDate.getTime());
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return str;
- }
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public String getNextMonthFirst(){
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String str = "";
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SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
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- Calendar lastDate = Calendar.getInstance();
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lastDate.add(Calendar.MONTH,1);
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lastDate.set(Calendar.DATE, 1);
- str=sdf.format(lastDate.getTime());
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return str;
- }
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public String getNextMonthEnd(){
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String str = "";
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SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
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- Calendar lastDate = Calendar.getInstance();
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lastDate.add(Calendar.MONTH,1);
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lastDate.set(Calendar.DATE, 1);
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lastDate.roll(Calendar.DATE, -1);
- str=sdf.format(lastDate.getTime());
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return str;
- }
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public String getNextYearEnd(){
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String str = "";
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SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
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- Calendar lastDate = Calendar.getInstance();
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lastDate.add(Calendar.YEAR,1);
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lastDate.set(Calendar.DAY_OF_YEAR, 1);
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lastDate.roll(Calendar.DAY_OF_YEAR, -1);
- str=sdf.format(lastDate.getTime());
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return str;
- }
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public String getNextYearFirst(){
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String str = "";
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SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
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- Calendar lastDate = Calendar.getInstance();
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lastDate.add(Calendar.YEAR,1);
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lastDate.set(Calendar.DAY_OF_YEAR, 1);
- str=sdf.format(lastDate.getTime());
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return str;
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- }
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private int getMaxYear(){
- Calendar cd = Calendar.getInstance();
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cd.set(Calendar.DAY_OF_YEAR,1);
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cd.roll(Calendar.DAY_OF_YEAR,-1);
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int MaxYear = cd.get(Calendar.DAY_OF_YEAR);
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return MaxYear;
- }
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private int getYearPlus(){
- Calendar cd = Calendar.getInstance();
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int yearOfNumber = cd.get(Calendar.DAY_OF_YEAR);
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cd.set(Calendar.DAY_OF_YEAR,1);
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cd.roll(Calendar.DAY_OF_YEAR,-1);
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int MaxYear = cd.get(Calendar.DAY_OF_YEAR);
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if(yearOfNumber == 1){
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return -MaxYear;
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}else{
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return 1-yearOfNumber;
- }
- }
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public String getCurrentYearFirst(){
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int yearPlus = this.getYearPlus();
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GregorianCalendar currentDate = new GregorianCalendar();
- currentDate.add(GregorianCalendar.DATE,yearPlus);
- Date yearDay = currentDate.getTime();
- DateFormat df = DateFormat.getDateInstance();
- String preYearDay = df.format(yearDay);
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return preYearDay;
- }
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-
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public String getCurrentYearEnd(){
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Date date = new Date();
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SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy");
- String years = dateFormat.format(date);
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return years+"-12-31";
- }
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public String getPreviousYearFirst(){
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Date date = new Date();
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SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy");
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String years = dateFormat.format(date); int years_value = Integer.parseInt(years);
- years_value--;
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return years_value+"-1-1";
- }
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public String getPreviousYearEnd(){
- weeks--;
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int yearPlus = this.getYearPlus();
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GregorianCalendar currentDate = new GregorianCalendar();
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currentDate.add(GregorianCalendar.DATE,yearPlus+MaxYear*weeks+(MaxYear-1));
- Date yearDay = currentDate.getTime();
- DateFormat df = DateFormat.getDateInstance();
- String preYearDay = df.format(yearDay);
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getThisSeasonTime(11);
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return preYearDay;
- }
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public String getThisSeasonTime(int month){
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int array[][] = {{1,2,3},{4,5,6},{7,8,9},{10,11,12}};
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int season = 1;
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if(month>=1&&month<=3){
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season = 1;
- }
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if(month>=4&&month<=6){
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season = 2;
- }
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if(month>=7&&month<=9){
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season = 3;
- }
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if(month>=10&&month<=12){
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season = 4;
- }
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int start_month = array[season-1][0];
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int end_month = array[season-1][2];
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Date date = new Date();
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SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy");
- String years = dateFormat.format(date);
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int years_value = Integer.parseInt(years);
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int start_days =1;
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int end_days = getLastDayOfMonth(years_value,end_month);
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String seasonDate = years_value+"-"+start_month+"-"+start_days+";"+years_value+"-"+end_month+"-"+end_days;
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return seasonDate;
-
- }
-
-
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private int getLastDayOfMonth(int year, int month) {
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if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8
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|| month == 10 || month == 12) {
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return 31;
- }
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if (month == 4 || month == 6 || month == 9 || month == 11) {
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return 30;
- }
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if (month == 2) {
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if (isLeapYear(year)) {
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return 29;
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} else {
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return 28;
- }
- }
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return 0;
- }
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public boolean isLeapYear(int year) {
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return (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0);
- }
- }
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