Java Joda时间-实现日期范围迭代器

Java Joda时间-实现日期范围迭代器

这是一些可以帮助您入门的东西。您可能要考虑一下，是否希望它在结尾处是包容性的或排他性的，等等。

import org.joda.time.*;import java.util.*;class LocalDateRange implements Iterable<LocalDate>{    private final LocalDate start;    private final LocalDate end;    public LocalDateRange(LocalDate start,    LocalDate end)    {        this.start = start;        this.end = end;    }    public Iterator<LocalDate> iterator()    {        return new LocalDateRangeIterator(start, end);    }    private static class LocalDateRangeIterator implements Iterator<LocalDate>    {        private LocalDate current;        private final LocalDate end;        private LocalDateRangeIterator(LocalDate start,      LocalDate end)        { this.current = start; this.end = end;        }        public boolean hasNext()        { return current != null;        }        public LocalDate next()        { if (current == null) {     throw new NoSuchElementException(); } LocalDate ret = current; current = current.plusDays(1); if (current.compareTo(end) > 0) {     current = null; } return ret;        }        public void remove()        { throw new UnsupportedOperationException();        }    }}class Test{    public static void main(String args[])    {        LocalDate start = new LocalDate(2009, 7, 20);        LocalDate end = new LocalDate(2009, 8, 3);        for (LocalDate date : new LocalDateRange(start, end))        { System.out.println(date);        }    }}

自从我用Java编写迭代器以来已经有一段时间了，所以我 希望 它是正确的。我认为这还可以…

哦，对于C＃迭代器块，这就是我能说的…