java获取昨日日期，明日日期和当天日期比较有效的方法
使用java获取昨日的日期，今日的日期，明日的日期

     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;}