今年的第几天?
输入年、月、日,计算该天是本年的第几天。
import java.util.Scanner; import java.util.Calendar; public class Main{ public static void main(String []args){ Scanner scan=new Scanner(System.in); int year=scan.nextInt(); int month=scan.nextInt(); int day=scan.nextInt(); Calendar cal=Calendar.getInstance(); cal.set(year,month-1,day); System.out.println(cal.get(Calendar.DAY_OF_YEAR)); } }