1. import java.text.DateFormatSymbols;
   
2. import java.util.*;
   
3. 
   
4. /**
   
5. * @version 1.4 2007-04-07
   
6. * @author Cay Horstmann
   
7. */
   
8. 
   
9. public class CalendarTest
   
10. {
    
11.    public static void main(String[] args)
    
12.    {
    
13.       // construct d as current date
    
14. //          Locale.setDefault(Locale.ITALY);
    
15.       GregorianCalendar d = new GregorianCalendar();
    
16. 
    
17.       int today = d.get(Calendar.DAY_OF_MONTH);
    
18. 
    
19.           int month = d.get(Calendar.MONTH);
    
20. 
    
21.       // set d to start date of the month
    
22.       d.set(Calendar.DAY_OF_MONTH, 1);
    
23. 
    
24.       int weekday = d.get(Calendar.DAY_OF_WEEK);
    
25. 
    
26.       // get first day of week (Sunday in the U.S.)

复制代码

最后的结果为什么是下面这个样子？


求哪位大神指教？？？

1. import java.text.DateFormatSymbols;
   
2. import java.util.*;
   
3. 
   
4. /**
   
5. * @version 1.4 2007-04-07
   
6. * @author Cay Horstmann
   
7. */
   
8. 
   
9. public class CalendarTest
   
10. {
    
11.    public static void main(String[] args)
    
12.    {
    
13.       // construct d as current date
    
14. //          Locale.setDefault(Locale.ITALY);
    
15.       GregorianCalendar d = new GregorianCalendar();
    
16. 
    
17.       int today = d.get(Calendar.DAY_OF_MONTH);
    
18. 
    
19.           int month = d.get(Calendar.MONTH);
    
20. 
    
21.       // set d to start date of the month
    
22.       d.set(Calendar.DAY_OF_MONTH, 1);
    
23. 
    
24.       int weekday = d.get(Calendar.DAY_OF_WEEK);
    
25. 
    
26.       // get first day of week (Sunday in the U.S.)

复制代码

最后的结果为什么是下面这个样子？


求哪位大神指教？？？