ï»??xml version="1.0" encoding="utf-8" standalone="yes"?>国模精品视频一区二区,亚洲播播91,天堂一区二区在线免费观看http://www.aygfsteel.com/Cboy/zh-cnTue, 08 Jul 2025 22:12:56 GMTTue, 08 Jul 2025 22:12:56 GMT60jbuilder中文有效解决æ–ÒŽ¡ˆhttp://www.aygfsteel.com/Cboy/archive/2006/02/12/30357.html大森æž?/dc:creator>大森æž?/author>Sun, 12 Feb 2006 08:05:00 GMThttp://www.aygfsteel.com/Cboy/archive/2006/02/12/30357.htmlhttp://www.aygfsteel.com/Cboy/comments/30357.htmlhttp://www.aygfsteel.com/Cboy/archive/2006/02/12/30357.html#Feedback0http://www.aygfsteel.com/Cboy/comments/commentRss/30357.htmlhttp://www.aygfsteel.com/Cboy/services/trackbacks/30357.html

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集合http://www.aygfsteel.com/Cboy/archive/2005/12/30/25974.html大森�/dc:creator>大森�/author>Thu, 29 Dec 2005 19:33:00 GMThttp://www.aygfsteel.com/Cboy/archive/2005/12/30/25974.htmlhttp://www.aygfsteel.com/Cboy/comments/25974.htmlhttp://www.aygfsteel.com/Cboy/archive/2005/12/30/25974.html#Feedback0http://www.aygfsteel.com/Cboy/comments/commentRss/25974.htmlhttp://www.aygfsteel.com/Cboy/services/trackbacks/25974.html Vector 和Enumeration 一�br>
�br>

Vector v = new Vector();
Enumeration e = v.elements();
e.nextElement 指示器正指向的元素对�br> e.hasMoreElements 回是否还有元�br>


List 和Iterator 一�br> �br>

ArrayList al = new ArrayList();
Iterator it = al.iterator();
it.next();
it.hasNext();


附加一句:排序使用Collections 的一个静态方�Collections.sort(集合对象);


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instanceof比较http://www.aygfsteel.com/Cboy/archive/2005/12/30/25973.html大森�/dc:creator>大森�/author>Thu, 29 Dec 2005 19:20:00 GMThttp://www.aygfsteel.com/Cboy/archive/2005/12/30/25973.htmlhttp://www.aygfsteel.com/Cboy/comments/25973.htmlhttp://www.aygfsteel.com/Cboy/archive/2005/12/30/25973.html#Feedback0http://www.aygfsteel.com/Cboy/comments/commentRss/25973.htmlhttp://www.aygfsteel.com/Cboy/services/trackbacks/25973.html �br> class A{}


class B extendsA{}


public class Test
{
public static void main(String args[])
{
B b= new B();
biJiao(b);
}
}


有一æ–ÒŽ³•


biJiao(object obj)
{
if (ojb instanceof A )
{
System.out.println("˜q™é‡Œä¼šæ˜¾½CºTrue");
}
}


˜q™æ ·ä¸èƒ½æ˜„¡¤ºå”¯ä¸€çš?要显½Cºå”¯ä¸€çš„用 Class æ–ÒŽ³•.每个¾c»éƒ½ä¼šæœ‰ä¸€ä¸ªå”¯ä¸€çš„Class.如这里改æˆ?br>

biJiao(object obj)
{
if (ojb.getClass==A.Class() )
{
System.out.println("˜q™é‡Œä¼šæ˜¾½CºFalse");
}
}


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