{"id":542,"date":"2021-02-03T12:43:18","date_gmt":"2021-02-03T04:43:18","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/java\/?p=542"},"modified":"2021-02-04T10:51:32","modified_gmt":"2021-02-04T02:51:32","slug":"iterator-%e8%bf%ad%e4%bb%a3%e5%99%a8%e7%b1%bb","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/java\/post-542.html","title":{"rendered":"Iterator &#8212; \u8fed\u4ee3\u5668\u7c7b"},"content":{"rendered":"\n<p>Iterator \u662f\u4e00\u4e2a\u63a5\u53e3\u7c7b\uff0c\u7528\u4e8e\u904d\u5386 Collection \u96c6\u5408<\/p>\n\n\n\n<p>\u8be5\u7c7b\u662f Collection \u7684\u7236\u7c7b\uff0c\u53ef\u4ee5\u901a\u8fc7 Collection \u83b7\u5f97 Iterator<\/p>\n\n\n\n<p>\u5b9e\u73b0\u4e86\u8be5\u63a5\u53e3\u7684\u5bf9\u8c61\uff0c\u90fd\u53ef\u4ee5\u4f7f\u7528 \u8fed\u4ee3\u5668\u904d\u5386<\/p>\n\n\n\n<h5>1.\u5bfc\u5305<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>import java.util.Iterator;<\/code><\/pre>\n\n\n\n<h5>2.\u6784\u9020\u65b9\u6cd5<\/h5>\n\n\n\n<p>\u63a5\u53e3\u7c7b\u65e0\u6cd5\u76f4\u63a5\u521b\u5efa\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u6001\u521b\u5efa<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/\u5148\u521b\u5efaCollection\u96c6\u5408\nCollection&lt;String&gt; coll = new ArrayList&lt;&gt;();\n\/\/\u4f7f\u7528Collection\u5bf9\u8c61\u7684 iterator \u65b9\u6cd5\u83b7\u53d6\nIterator&lt;String&gt; iterator = coll.iterator();<\/code><\/pre>\n\n\n\n<h5>3.\u65b9\u6cd5<\/h5>\n\n\n\n<p>1.\u8fd4\u56de\u4e0b\u4e00\u4e2a\u5143\u7d20<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>iterator.nexy();<\/code><\/pre>\n\n\n\n<p>2.\u5224\u65ad\u662f\u5426\u6709\u4e0b\u4e00\u4e2a\u5143\u7d20<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>iterator.hasNext();<\/code><\/pre>\n\n\n\n<p>4.\u7b80\u5355\u4f7f\u7528\uff0c\u904d\u5386 Collection \u96c6\u5408<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Collection&lt;String&gt; coll = new ArrayList&lt;&gt;();\ncoll.add(\"hello\");\ncoll.add(\"world\");\n\n\/\/\u6dfb\u52a0\u6570\u636e\u540e\u83b7\u53d6\u8fed\u4ee3\u5668\uff0c\u53cd\u8fc7\u6765\u4f1a\u62a5\u9519\nIterator&lt;String&gt; iterator = coll.iterator();\n \nwhile(iterator.hasNext()){\n\t  String s = iterator.next();\n\t  System.out.println(s);  \n\t}<\/code><\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Iterator \u662f\u4e00\u4e2a\u63a5\u53e3\u7c7b\uff0c\u7528\u4e8e\u904d\u5386 Collection \u96c6\u5408 \u8be5\u7c7b\u662f Collection \u7684\u7236\u7c7b\uff0c\u53ef&hellip; <a href=\"https:\/\/www.52dixiaowo.com\/java\/post-542.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">Iterator &#8212; \u8fed\u4ee3\u5668\u7c7b<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[14],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/542"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/comments?post=542"}],"version-history":[{"count":0,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/542\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/media?parent=542"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/categories?post=542"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/tags?post=542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}