一个小程序~

	public String getYear(Integer year){

		if(year<1900){

			return "未知";

		}

		Integer start=1900;

		String [] years=new String[]{

				"鼠","牛","虎","兔",

				"龙","蛇","马","羊",

				"猴","鸡","狗","猪"

				};

		return years[(year-start)%years.length];

	}