Java怎么利用Scaner从键盘输入一个日期并且计算这个日期是星期几？

Java怎么利用Scaner从键盘输入一个日期并且计算这个日期是星期几？

https://zhidao.baidu.com/question/618013378369318532.html

http://www.jb51.net/article/95285.htm

public class DayOfWeek4Birthday {
private String[] date; //保存输入数据：年数、几月、几号。

//计算输入的日期数据对应的星期几。
private void caculateData() {
GregorianCalendar gc = new GregorianCalendar();
final char[] day_of_week = {'日','一','二','三','四','五','六'};
int year = gc.get(Calendar.YEAR); //从当前年算起。
char week;

for(int i = year; i<= year + Integer.valueOf(date[0]) - 1; i++) {
  gc.set(i, Integer.valueOf(date[1]) - 1, Integer.valueOf(date[2]));

  week = day_of_week[gc.get(Calendar.DAY_OF_WEEK) - 1];

  out.println(i + "年" + date[1] + "月" + date[2] + "号是星期" + week + "。");
}

}

//输入日期数据。
private void inputData() {
InputStreamReader is = new InputStreamReader(System.in);
BufferedReader br = new BufferedReader(is);

try {
  out.print("请输入年份范围和日期，格式：年数 几月 几号（5 9 15），回车结束：");
  String in = br.readLine();
  date   = in.split(" ");
  out.println("输入结果：" + date[0] + "个年数，" + date[1] + "月" + date[2] + "号。");
}
catch(Exception e) {
  out.println("啊哦，运行出错咯-_-。sorry！");
} finally {
  try {
    br.close();
    is.close();
  } catch (IOException e) {
    out.println("IO出错咯-_-。sorry！");
  }
}

}

public static void main(String[] args) {
DayOfWeek4Birthday dayOfWeek4Birthday = new DayOfWeek4Birthday();

dayOfWeek4Birthday.inputData();
dayOfWeek4Birthday.caculateData();

}
}