获取给定日期是一年中的第几天

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
/**
* 得到给定时期是一年中的第几天
* @author 林
*
*/
public class Test5_date {
//方法一
public String getDay1(String time){
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
String day = "" ;
try {
Date date = sdf.parse(time);
day += String.format("%tj", date);
} catch (Exception e) {
e.printStackTrace();
}

return day;
}
//方法二
public int getDay2(String time){
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
int day = 0;
try {
Date date = sdf.parse(time);
Calendar c = Calendar.getInstance();
c.setTime(date);
day = c.get(Calendar.DAY_OF_YEAR);
} catch (Exception e) {
e.printStackTrace();
}

return day;
}
public static void main(String[] args) {
Test5_date t = new Test5_date();
String time = "2016-9-27";
String day = t.getDay1(time);
System.out.println(day);
}
}