JAVA-获取当天时间和下一天时间，以一天时间变化

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 一、显示当天

  today_date_1=new Date();
  today_date_2=new Date();
  today_cal_1=Calendar.getInstance();//获取当前时间
  today_cal_2=Calendar.getInstance(); 
  today_time_2=null;
  
  today_time_1=formatter_1.format(today_date_1);
  StringBuffer str_todayFirst=new StringBuffer().append(today_time_1).append("  00:00:00");
  today_time_1=str_todayFirst.toString();
  text1.setText(today_time_1);
  
  today_cal_1.add(Calendar.DATE,+1);
  today_date_2=today_cal_1.getTime();
  today_time_2=formatter_1.format(today_date_2); 
  StringBuffer str_todayLast=new StringBuffer().append(today_time_2).append("  00:00:00");
  today_time_2=str_todayLast.toString();
  text2.setText(today_time_2);

二、以天为单位变化

1、向前推一天

   today_cal_1.add(Calendar.DATE,-2);
   today_date_1=today_cal_1.getTime();
   today_time_1=formatter_1.format(today_date_1); 
   StringBuffer str_todayFirst=new StringBuffer().append(today_time_1).append("  00:00:00");
   today_time_1=str_todayFirst.toString();
   text1.setText(today_time_1);   
   
   today_cal_1.add(Calendar.DATE,+1);
   today_date_2=today_cal_1.getTime();
   today_time_2=formatter_1.format(today_date_2); 
   StringBuffer str_todayLast=new StringBuffer().append(today_time_2).append("  00:00:00");
   today_time_2=str_todayLast.toString();
   text2.setText(today_time_2);

2、向后推一天

    today_cal_1.add(Calendar.DATE,0);
   today_date_1=today_cal_1.getTime();
   today_time_1=formatter_1.format(today_date_1); 
   StringBuffer str_todayFirst=new StringBuffer().append(today_time_1).append("  00:00:00");
   today_time_1=str_todayFirst.toString();
   text1.setText(today_time_1);
   
   today_cal_1.add(Calendar.DATE,+1);
   today_date_2=today_cal_1.getTime();
   today_time_2=formatter_1.format(today_date_2); 
   StringBuffer str_todayLast=new StringBuffer().append(today_time_2).append("  00:00:00");
   today_time_2=str_todayLast.toString();
   text2.setText(today_time_2);

JAVA-获取当天时间和下一天时间，以一天时间变化

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原文地址：http://www.cnblogs.com/Hblog/p/5504538.html