import java.time.DayOfWeek;
import java.time.LocalDate;
public class Main {
public static void main(String[] args) {
LocalDate date = LocalDate.now();
int month = date.getMonthValue();
int today = date.getDayOfMonth();
System.out.println(month);
date = date.minusDays(today - 1);
System.out.println(date.getMonthValue());
DayOfWeek weekday = date.getDayOfWeek();
int value = weekday.getValue();
System.out.println(value);
System.out.println("Mon Tue Wed Thu Fri Sat Sun");
for (int i = 1; i < value; i++) {
System.out.print(" ");
}
while (date.getMonthValue() == month) {
System.out.printf("%3d", date.getDayOfMonth());
if (date.getDayOfMonth() == today) {
System.out.printf("*");
} else {
System.out.print(" ");
}
date = date.plusDays(1);
if (date.getDayOfWeek().getValue() == 1) {
System.out.println();
}
}
}
}
运行结果
5
5
2
Mon Tue Wed Thu Fri Sat Sun
1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24* 25 26 27
28 29 30 31
