Java Calendar擷取年、月、日、時間

標籤：std   nbsp   timezone   item   java   curd   out   add   str   

 1 Calendar c = Calendar.getInstance(TimeZone.getTimeZone("GMT+08:00"));    //擷取東八區時間 2  3   int year = c.get(Calendar.YEAR);    //擷取年 4   int month = c.get(Calendar.MONTH) + 1;   //擷取月份，0表示1月份 5   int day = c.get(Calendar.DAY_OF_MONTH);    //擷取當前天數 6   int first = c.getActualMinimum(c.DAY_OF_MONTH);    //擷取本月最小天數 7   int last = c.getActualMaximum(c.DAY_OF_MONTH);    //擷取本月最大天數 8   int time = c.get(Calendar.HOUR_OF_DAY);       //擷取當前小時 9   int min = c.get(Calendar.MINUTE);          //擷取當前分鐘10   int xx = c.get(Calendar.SECOND);          //擷取當前秒11 12  13 14   SimpleDateFormat s=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");15 16   String curDate = s.format(c.getTime());  //當前日期17   System.out.println("目前時間："+year + "-" + month + "-"+ day + " "+time + ":" + min +":" + xx);18   System.out.println("第一天和最後天：" + first +"," + last);19 20   System.out.println("當前日期curDate====：" + curDate);21 22  23 24 輸出結果：25 26 目前時間：2012-9-25 22:50:5427 第一天和最後天：1,3028 29 當前日期curDate：2012-09-25 22:50:5430 31  32 33 Calendar的計算34 35   c.add(Calendar.YEAR, 1);36   c.add(Calendar.MONTH, 1);37   c.add(Calendar.DAY_OF_MONTH, 1);38   int year2 = c.get(Calendar.YEAR);39   int month2 = c.get(Calendar.MONTH) + 1;40   int day2 = c.get(Calendar.DAY_OF_MONTH);41   int firstD = c.getActualMinimum(c.DAY_OF_MONTH);42   int lastD = c.getActualMaximum(c.DAY_OF_MONTH);43   System.out.println("目前時間："+year2 + "-" + month2 + "-"+ day2 + " "+time + ":" + min +":" + xx);44   System.out.println("第一天和最後天：" + firstD +"," + lastD);45 46  47 48 輸出結果：49 50 目前時間：2013-10-26 23:4:351 第一天和最後天：1,3152 53 54 55 擷取上個月的年、月、日56 57 Calendar c=Calendar.getInstance();58 59 c.add(Calendar.MONTH, -1);//上個月60 61 SimpleDateFormat s=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");62 63 String year=String.valueOf(c.get(Calendar.YEAR));64 65 String topDay = String.valueOf(c.getActualMinimum(Calendar.DAY_OF_MONTH));66 67 String lastDay = String.valueOf(c.getActualMaximum(Calendar.DAY_OF_MONTH)); 68 69 //上個月70 71 String lastMonth=String.valueOf(c.get(Calendar.MONTH)+1).length()==2?String.valueOf(c.get(Calendar.MONTH)+1):"0"+String.valueOf(c.get(Calendar.MONTH)+1);72 73 String topDayMonth=year+"-"+lastMonth+"-"+"01" + " 00:00:00";74 75 String lastDayMonth = year+"-"+lastMonth+"-"+lastDay+ " 23:59:59";76 77 System.out.println("###year:" + year);78 79 System.out.println("###last month:" + lastMonth);80 81         System.out.println("###topday:" + topDayMonth);82 83         System.out.println("###lastday:" + lastDayMonth);84 85 86 87 輸出結果88 89 ###year:201390 91 ###last month:0492 93 ###topday:2013-04-01 00:00:0094 95 ###lastday:2013-04-30 23:59:5996 97 轉自 http://hi.baidu.com/zzm_2007/item/3b967b1cd1586e4e2b3e2258

 

Java Calendar擷取年、月、日、時間