map集合应用，查找星期

public class MapTest2 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		String week=getWeek_1(1);
		System.out.println(week);
		week=getWeek_2(week);
		System.out.println(week);
	}

	private static String getWeek_2(String week) {
		Map<String,String> mp=new HashMap<String,String>();
		mp.put("星期一", "Monday");
		mp.put("星期二", "Tuesday");
		mp.put("星期三", "Wensday");
		mp.put("星期四", "Tursday");
		mp.put("星期五", "Friday");
		mp.put("星期六", "Satarday");
		mp.put("星期天", "Sunday");
		return mp.get(week);
	}

	private static String getWeek_1(int num) {
		if(num<1||num>7){
			throw new RuntimeException("没有这个数字，请重新输入");
		}
		String[] str={"","星期一","星期二","星期三","星期四","星期五","星期六","星期天"};
		return str[num];
	}

}