Calendar c = Calendar.getInstance(TimeZone.getTimeZone("GMT+08:00")); //获取东八区时间
int year = c.get(Calendar.YEAR); //获取年
int
month = c.get(Calendar.MONTH) + 1; //获取月份，0表示1月份
int day =
c.get(Calendar.DAY_OF_MONTH); //获取当前天数
int first =
c.getActualMinimum(c.DAY_OF_MONTH); //获取本月最小天数
int
last = c.getActualMaximum(c.DAY_OF_MONTH);
//获取本月最大天数
int time =
c.get(Calendar.HOUR_OF_DAY);
//获取当前小时
int min =
c.get(Calendar.MINUTE);
//获取当前分钟
int xx =
c.get(Calendar.SECOND);
//获取当前秒
SimpleDateFormat s=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String curDate = s.format(c.getTime()); //当前日期
System.out.println("当前时间："+year + "-" + month + "-"+ day + " "+time + ":" + min
+":" + xx);
System.out.println("第一天和最后天：" + first +"," + last);
System.out.println("当前日期curDate====：" + curDate);
输出结果：
当前时间：2012-9-25 22:50:54
第一天和最后天：1,30
当前日期curDate：2012-09-25 22:50:54
Calendar的计算
c.add(Calendar.YEAR, 1);
c.add(Calendar.MONTH, 1);
c.add(Calendar.DAY_OF_MONTH, 1);
int year2 =
c.get(Calendar.YEAR);
int month2 = c.get(Calendar.MONTH) +
1;
int day2 = c.get(Calendar.DAY_OF_MONTH);
int firstD =
c.getActualMinimum(c.DAY_OF_MONTH);
int lastD =
c.getActualMaximum(c.DAY_OF_MONTH);
System.out.println("当前时间："+year2 +
"-" + month2 + "-"+ day2 + " "+time + ":" + min +":" + xx);
System.out.println("第一天和最后天：" + firstD +"," + lastD);
输出结果：
当前时间：2013-10-26 23:4:3
第一天和最后天：1,31
获取上个月的年、月、日
Calendar c=Calendar.getInstance();
c.add(Calendar.MONTH, -1);//上个月
SimpleDateFormat s=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String year=String.valueOf(c.get(Calendar.YEAR));
String topDay = String.valueOf(c.getActualMinimum(Calendar.DAY_OF_MONTH));
String lastDay = String.valueOf(c.getActualMaximum(Calendar.DAY_OF_MONTH));
//上个月
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);
String topDayMonth=year+"-"+lastMonth+"-"+"01" + " 00:00:00";
String lastDayMonth = year+"-"+lastMonth+"-"+lastDay+ " 23:59:59";
System.out.println("###year:" + year);
System.out.println("###last month:" + lastMonth);
System.out.println("###topday:" + topDayMonth);
System.out.println("###lastday:" + lastDayMonth);
输出结果
###year:2013
###last month:04
###topday:2013-04-01 00:00:00
###lastday:2013-04-30 23:59:59
Java Calendar获取年、月、日、时间,布布扣,bubuko.com
原文地址：http://www.cnblogs.com/lpjia/p/3784649.html
