- public class CalendarTest {
- public static void main(String[] args) {
- // 获取当前年份、月份、日期
- Calendar cale = null;
- cale = Calendar.getInstance();
- int year = cale.get(Calendar.YEAR);
- int month = cale.get(Calendar.MONTH) + 1;
- int day = cale.get(Calendar.DATE);
- int hour = cale.get(Calendar.HOUR_OF_DAY);
- int minute = cale.get(Calendar.MINUTE);
- int second = cale.get(Calendar.SECOND);
- int dow = cale.get(Calendar.DAY_OF_WEEK);
- int dom = cale.get(Calendar.DAY_OF_MONTH);
- int doy = cale.get(Calendar.DAY_OF_YEAR);
- System.out.println("Current Date: " + cale.getTime());
- System.out.println("Year: " + year);
- System.out.println("Month: " + month);
- System.out.println("Day: " + day);
- System.out.println("Hour: " + hour);
- System.out.println("Minute: " + minute);
- System.out.println("Second: " + second);
- System.out.println("Day of Week: " + dow);
- System.out.println("Day of Month: " + dom);
- System.out.println("Day of Year: " + doy);
- // 获取当月第一天和最后一天
- SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
- String firstday, lastday;
- // 获取前月的第一天
- cale = Calendar.getInstance();
- cale.add(Calendar.MONTH, 0);
- cale.set(Calendar.DAY_OF_MONTH, 1);
- firstday = format.format(cale.getTime());
- // 获取前月的最后一天
- cale = Calendar.getInstance();
- cale.add(Calendar.MONTH, 1);
- cale.set(Calendar.DAY_OF_MONTH, 0);
- lastday = format.format(cale.getTime());
- System.out.println("本月第一天和最后一天分别是 ： " + firstday + " and " + lastday);
- // 获取当前日期字符串
- Date d = new Date();
- System.out.println("当前日期字符串1：" + format.format(d));
- System.out.println("当前日期字符串2：" + year + "/" + month + "/" + day + " "
- + hour + ":" + minute + ":" + second);
- }
- }
