给两个时间：起始日期跟终止日期,求一函数,把它的月数列出来,要可以跨年跨月的

给两个时间：起始日期和终止日期,求一函数,把它的月数列出来,要可以跨年跨月的。
给两个时间：起始日期和终止日期,比如2008-12-25 2009-01-10,求一函数,把它的月数列出来,要可以跨年。
得出下面结果：
2008-10-25至2008-10-31  
2008-11-01至2008-11-30  
2008-12-01至2008-12-31  
2009-01-01至2009-01-31  
2009-02-01至2009-02-28
2009-03-01至2009-03-10


[解决办法]

Java code

    private static void printYearMonth(String start, String end) throws Exception {        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");        Date s = sdf.parse(start);        Date e = sdf.parse(end);        Calendar cals = Calendar.getInstance();        cals.setTime(s);        Calendar cale = Calendar.getInstance();        cale.setTime(e);        StringBuffer sb = new StringBuffer();        while (cals.before(cale)) {            sb.append(sdf.format(cals.getTime()));            sb.append("至");            cals.set(Calendar.DATE, 1);            cals.add(Calendar.MONTH, 1);            if (cals.after(cale)) {                cals = cale;                sb.append(sdf.format(cals.getTime()) + "\n");                break;            }            cals.add(Calendar.DATE, -1);            sb.append(sdf.format(cals.getTime()) + "\n");            cals.add(Calendar.DATE, 1);        }        System.out.print(sb.toString());    }