java獲取本月或某月的第一天和最后一天

獲取某月的第一天和最后一天的日期

Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.DAY_OF_MONTH, 1);
Date firstDayOfMonth = calendar.getTime();  
calendar.add(Calendar.MONTH, 1);
calendar.add(Calendar.DAY_OF_MONTH, -1);
Date lastDayOfMonth = calendar.getTime();

寫於 2015-02-27