Calender函数

		
	Calendar calendar = Calendar.getInstance();//日历对象 
	//输出的月份是上一个月 
	System.out.println(calendar.get(Calendar.MONTH));
	//输出本月
	System.out.println(calendar.get(Calendar.MONTH))+1;
 	System.out.println(calendar.get(calendar.YEAR));
	System.out.println(calendar.get(calendar.DATE));
	//当前详细信息:Tue Dec 26 21:11:29 CST 2017
	System.out.println(calendar.getTime());