java获取昨天日期，明日日期和当天日期比较有效的方法

     private String tomorrowDate;//明日日期
      private String todayDate;//明日日期
      private String yesterdayDate;//明日日期
      

      private void chooseTomorrowDateLink(){
		Calendar  calendar=Calendar.getInstance();
		calendar.add(Calendar.DATE,+1); 
		Date nextDate = calendar.getTime();
		tomorrowDate = DateChange.DateTimeToString(nextDate).substring(0, 10);// 日期
	}

     private void chooseYesterdayDateLink(){
		Calendar  calendar=Calendar.getInstance();
		calendar.add(Calendar.DATE,-1); 
		Date nextDate = calendar.getTime();
		yesterdayDate = DateChange.DateTimeToString(nextDate).substring(0, 10);// 日期
	   }

      private void chooseTodayDateLink(Date date){
		     todayDate = DateChange.DateTimeToString(date).substring(0, 10);// 日期
	     }

public String getTomorrowDate() {
		return tomorrowDate;
	}

	public void setTomorrowDate(String tomorrowDate) {
		this.tomorrowDate = tomorrowDate;
	}

	public String getTodayDate() {
		return todayDate;
	}

	public void setTodayDate(String todayDate) {
		this.todayDate = todayDate;
	}

	public String getYesterdayDate() {
		return yesterdayDate;
	}

	public void setYesterdayDate(String yesterdayDate) {
		this.yesterdayDate = yesterdayDate;
	}