java 请计算出距当前时间100天后的日期时间，并用“xxxx年xx月x日”的格式输出

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

public class Test {
public static void main(String[] args) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日");
Date date = new Date();
Calendar c = Calendar.getInstance();
c.setTime(date);
c.add(Calendar.DATE, 100);
System.out.println(sdf.format(c.getTime()));
}
}