请问程序最后的for循环括号里的东西什么意思?
package cn.edu.njnu.enumtest;
public class Test
{
public static void main(String[] args)
{
Weekday today = Weekday.Sun;
System.out.println(today);
System.out.println(today.name());
System.out.println(today.ordinal());
Weekday[] days = today.values();
for(Weekday day:days)
System.out.println(day);
}
public enum Weekday
{
Sun,Mon,Tue,Wed,Thu,Fri,Sat
}
}