Import java.text.dateformat;
Import java.text.parseexception;
Import java.text.simpledateformat;
Import java.util.date;
Import java.util.scanner;
Common class test {
Public static void main(String[] args) {
String[] day = new String[] {"Day", "One", "Two", "Three", "Four", "Five" and "Six"};
date format df = new simple date format(" yyyyMMdd ")； //The date entered must be in this format.
Scanner s = new scanner (system. in);
while (true) {
System.out.println ("Enter the date in the format of 20 120 10 1");
Try {
date d = df . parse(s . nextline())； //Convert a string to a date
system . out . println(" week "+day[d . getday()])；
} catch (ParseException e) {
System.out.println ("illegal input");
}
}
}
}
Running results:
Enter the date in the format of 20 120 10 1.
20 1 1 1 123
Wednesday
Enter the date in the format of 20 120 10 1.
20 1 1
Illegal input
Enter the date in the format of 20 120 10 1.