java中根据系统时间动态获取季度以及月份解决方案

public static void main(String[] args) throws Exception {        SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日");        Calendar now = Calendar.getInstance();        System.out.println(sdf.format(now.getTime()));        Calendar time1 = new GregorianCalendar(now.get(Calendar.YEAR), now.get(Calendar.MONTH), 16);        System.out.println(sdf.format(time1.getTime()));        Calendar time2 = new GregorianCalendar(now.get(Calendar.YEAR), now.get(Calendar.MONTH) + 1, 15);        System.out.println(sdf.format(time2.getTime()));        if (now.after(time1) && now.before(time2)) {            now.add(Calendar.MONTH, -1);        } else {            now.add(Calendar.MONTH, -2);        }        System.out.println("-----------------------");        System.out.println(sdf.format(now.getTime()));        System.out.println(now.get(Calendar.MONTH));        System.out.println(now.get(Calendar.YEAR));        int month = now.get(Calendar.MONTH) + 1;        if(month == 1 || month ==2 || month ==3){            System.out.println("一季度");        }        else if(month == 4 || month ==5 || month ==6){            System.out.println("二季度");        }        else if(month == 7 || month ==8 || month ==9){            System.out.println("三季度");        }        else if(month == 10 || month ==11 || month ==12){            System.out.println("四季度");        }    }