public static void main(String args[]){ SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); Calendar c = Calendar.getInstance(); c.add(Calendar.MONTH, 0); c.set(Calendar.DAY_OF_MONTH,1);//设置为1号,当前日期既为本月第一天 c.set(Calendar.HOUR_OF_DAY, 0); c.set(Calendar.MINUTE, 0); c.set(Calendar.SECOND, 0); String first = format.format(c.getTime()); System.out.println("===============first:"+first);
Calendar ca = Calendar.getInstance(); ca.set(Calendar.DAY_OF_MONTH, ca.getActualMaximum(Calendar.DAY_OF_MONTH)); ca.set(Calendar.HOUR_OF_DAY, ca.getActualMaximum(Calendar.HOUR_OF_DAY)); ca.set(Calendar.MINUTE, ca.getActualMaximum(Calendar.MINUTE)); ca.set(Calendar.SECOND, ca.getActualMaximum(Calendar.SECOND)); String last = format.format(ca.getTime()); System.out.println("===============last:"+last);
}
|