/** 判断是否为同一月份 */
public boolean compareMonths(Date rechargeDate,Date date){
Calendar c = Calendar.getInstance();
c.setTime(rechargeDate);
int rechargeMonth = c.get(Calendar.MONTH) + 1;//返回的是月份数字
Calendar c1 = Calendar.getInstance();
c1.setTime(new Date());
int month = c1.get(Calendar.MONTH) + 1; //如果今天是2016/7/7，month=7
return rechargeMonth==month?true:false;
}
示例 说明：：：：：：：：：：：：
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
int month = cal.get(Calendar.MONTH); //注意月份是从0开始的,比如当前7月，获得的month为6，所以上面的方法给+1
示例：：：：：：：：：：：
Calendar cal = Calendar.getInstance();
int day = cal.get(Calendar.DATE);
int month = cal.get(Calendar.MONTH) + 1;
int year = cal.get(Calendar.YEAR);
int dow = cal.get(Calendar.DAY_OF_WEEK);
int dom = cal.get(Calendar.DAY_OF_MONTH);
int doy = cal.get(Calendar.DAY_OF_YEAR);
System.out.println("Current Date: " + cal.getTime());
System.out.println("Day: " + day);
System.out.println("Month: " + month);
System.out.println("Year: " + year);
System.out.println("Day of Week: " + dow);
System.out.println("Day of Month: " + dom);
System.out.println("Day of Year: " + doy);
下面是例子的输出：
Current Date: Thu Dec 29 13:41:09 ICT 2005
Day: 29
Month:12
Year:2005
Day of Week: 5
Day of Month:29
Day of Year:363