简单点吧 几行代码
import java.time.LocalDate;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
String s = scanner.nextLine();
String[] s1 = s.split(" ");
LocalDate nowDate =LocalDate.of(Integer.valueOf(s1[0]),Integer.valueOf(s1[1]),Integer.valueOf(s1[2]));
System.out.println(nowDate.getDayOfYear());
}
}
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
String s = scanner.nextLine();
String[] s1 = s.split(" ");
LocalDate nowDate =LocalDate.of(Integer.valueOf(s1[0]),Integer.valueOf(s1[1]),Integer.valueOf(s1[2]));
System.out.println(nowDate.getDayOfYear());
}
}