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import java.util.ArrayList; import java.util.Collection; import java.util.HashMap; import java.util.HashSet; import java.util.Iterator; public class collectionsTest { public static void main(String[] args) { Collection c = new ArrayList(); c.add("Zhouyi"); c.add("Burning Teng"); //System.out.println(c); //System.out.println(c.c) Iterator it = c.iterator(); while (it.hasNext()) { String str = (String)it.next(); System.out.println(str); if (str.equals("Burning Teng")) { it.remove(); } str = "Burning";//当使用Iterator对集合元素进行迭代时,Iterator并不是把集合元素本身传给了迭代变量,而是把集合元素的值传给了迭代变量,所以修改迭代变量的值对集合元素本身没有任何影响。 } System.out.println(c); } } 运行结果: Zhouyi Burning Teng [Zhouyi] <script>window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"2","bdMiniList":false,"bdPic":"","bdStyle":"0","bdSize":"16"},"share":{}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)];</script> 阅读(5) | 评论(0) | 转发(0) | 0上一篇:匿名内部类
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