{"id":39487,"date":"2024-11-26T08:41:27","date_gmt":"2024-11-26T00:41:27","guid":{"rendered":"https:\/\/fwq.ai\/blog\/39487\/"},"modified":"2024-11-26T08:41:27","modified_gmt":"2024-11-26T00:41:27","slug":"java%e6%80%8e%e4%b9%88%e9%81%8d%e5%8e%86%e6%95%b0%e7%bb%84%e5%85%83%e7%b4%a0%e7%9a%84%e5%80%bc","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/39487\/","title":{"rendered":"java\u600e\u4e48\u904d\u5386\u6570\u7ec4\u5143\u7d20\u7684\u503c"},"content":{"rendered":"

\n \u904d\u5386 java \u6570\u7ec4\u5143\u7d20\u503c\u7684\u65b9\u6cd5\u6709\uff1a\u589e\u5f3a\u578b for \u5faa\u73af\uff1a\u4f7f\u7528\u66f4\u7b80\u6d01\u7684\u8bed\u6cd5\u904d\u5386\u6570\u7ec4\u5143\u7d20\u3002\u666e\u901a for \u5faa\u73af\uff1a\u4f7f\u7528\u7d22\u5f15\u503c\u9010\u4e2a\u904d\u5386\u6570\u7ec4\u5143\u7d20\u3002while \u5faa\u73af\uff1a\u4f7f\u7528\u7d22\u5f15\u503c\u5728\u6570\u7ec4\u7684\u6574\u4e2a\u957f\u5ea6\u5185\u8fed\u4ee3\u3002iterator\uff1a\u901a\u8fc7 iterator \u63a5\u53e3\u904d\u5386\u6570\u7ec4\u5143\u7d20\uff0c\u4f7f\u5176\u4e0e\u5176\u4ed6\u96c6\u5408\u4e00\u8d77\u4f7f\u7528\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u904d\u5386\u6570\u7ec4\u5143\u7d20\u7684\u503c\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u904d\u5386 Java \u6570\u7ec4\u5143\u7d20\u7684\u503c<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u904d\u5386\u6570\u7ec4\u5143\u7d20\u7684\u503c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n

1. \u589e\u5f3a\u578b for \u5faa\u73af<\/strong><\/p>\n

\u589e\u5f3a\u578b for \u5faa\u73af\u4f7f\u7528 for-each \u8bed\u6cd5\uff0c\u8fd9\u662f\u4e00\u79cd\u904d\u5386\u6570\u7ec4\u5143\u7d20\u7684\u7b80\u4fbf\u4e14\u6d41\u884c\u7684\u65b9\u5f0f\uff1a<\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

int[] numbers = {1, 2, 3, 4, 5};\n\nfor (int number : numbers) {\n    System.out.println(number);\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2. \u666e\u901a for \u5faa\u73af<\/strong><\/p>\n
\u666e\u901a\u7684 for \u5faa\u73af\u901a\u8fc7\u4f7f\u7528\u7d22\u5f15\u503c\u6765\u904d\u5386\u6570\u7ec4\u5143\u7d20\uff1a<\/p>\n
int[] numbers = {1, 2, 3, 4, 5};\n\nfor (int i = 0; i < numbers.length; i++) {\n    System.out.println(numbers[i]);\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
3. while \u5faa\u73af<\/strong><\/p>\n
while \u5faa\u73af\u53ef\u4ee5\u7528\u4e8e\u904d\u5386\u6570\u7ec4\u5143\u7d20\uff0c\u53ea\u8981\u7d22\u5f15\u503c\u5c0f\u4e8e\u6570\u7ec4\u957f\u5ea6\uff1a<\/p>\n
int[] numbers = {1, 2, 3, 4, 5};\nint i = 0;\n\nwhile (i < numbers.length) {\n    System.out.println(numbers[i]);\n    i++;\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
4. Iterator<\/strong><\/p>\n
Iterator \u63a5\u53e3\u63d0\u4f9b\u4e86\u4e00\u79cd\u904d\u5386\u96c6\u5408\u5143\u7d20\u7684\u65b9\u6cd5\uff0c\u5305\u62ec\u6570\u7ec4\u3002\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528 Arrays.asList() \u65b9\u6cd5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a List\uff0c\u7136\u540e\u4f7f\u7528\u5176 iterator() \u65b9\u6cd5\uff1a<\/p>\n
int[] numbers = {1, 2, 3, 4, 5};\n\nList<Integer> numberList = Arrays.asList(numbers);\nIterator<Integer> iterator = numberList.iterator();\n\nwhile (iterator.hasNext()) {\n    System.out.println(iterator.next());\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u9009\u62e9\u6700\u4f73\u65b9\u6cd5<\/strong><\/p>\n
\u4ee5\u4e0b\u662f\u4e00\u4e9b\u9009\u62e9\u904d\u5386\u6570\u7ec4\u5143\u7d20\u65b9\u6cd5\u7684\u51c6\u5219\uff1a<\/p>\n
    \n
  • \u5bf9\u4e8e\u7b80\u5355\u904d\u5386\uff0c\u4f7f\u7528\u589e\u5f3a\u578b for \u5faa\u73af\u6216\u666e\u901a for \u5faa\u73af\u3002<\/li>\n
  • \u5bf9\u4e8e\u9700\u8981\u5bf9\u6570\u7ec4\u5185\u5bb9\u8fdb\u884c\u4fee\u6539\u7684\u64cd\u4f5c\uff0c\u4f7f\u7528\u666e\u901a for \u5faa\u73af\u3002<\/li>\n
  • \u5bf9\u4e8e\u9700\u8981\u4e0e\u5176\u4ed6\u96c6\u5408\u96c6\u6210\u7684\u60c5\u51b5\uff0c\u4f7f\u7528 Iterator\u3002<\/li>\n<\/ul>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u904d\u5386\u6570\u7ec4\u5143\u7d20\u7684\u503c\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u904d\u5386 java \u6570\u7ec4\u5143\u7d20\u503c\u7684\u65b9\u6cd5\u6709\uff1a\u589e\u5f3a\u578b for \u5faa\u73af\uff1a\u4f7f\u7528\u66f4\u7b80\u6d01\u7684\u8bed\u6cd5\u904d\u5386\u6570\u7ec4\u5143\u7d20\u3002\u666e\u901a for \u5faa\u73af\uff1a\u4f7f\u7528\u7d22\u5f15\u503c\u9010\u4e2a\u904d\u5386\u6570\u7ec4\u5143\u7d20\u3002while \u5faa\u73af\uff1a\u4f7f\u7528\u7d22\u5f15\u503c\u5728\u6570\u7ec4\u7684\u6574\u4e2a\u957f\u5ea6\u5185\u8fed\u4ee3\u3002iterator\uff1a\u901a\u8fc7 iterator \u63a5\u53e3\u904d\u5386\u6570\u7ec4\u5143\u7d20\uff0c\u4f7f\u5176\u4e0e\u5176\u4ed6\u96c6\u5408\u4e00\u8d77\u4f7f\u7528\u3002 \u5982\u4f55\u904d\u5386 Java \u6570\u7ec4\u5143\u7d20\u7684\u503c \u5728 Java \u4e2d\uff0c\u904d\u5386\u6570\u7ec4\u5143\u7d20\u7684\u503c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a 1. \u589e\u5f3a\u578b for \u5faa\u73af \u589e\u5f3a\u578b for \u5faa\u73af\u4f7f\u7528 for-each \u8bed\u6cd5\uff0c\u8fd9\u662f\u4e00\u79cd\u904d\u5386\u6570\u7ec4\u5143\u7d20\u7684\u7b80\u4fbf\u4e14\u6d41\u884c\u7684\u65b9\u5f0f\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {1, 2, 3, 4, 5}; for (int number : numbers) { System.out.println(number); } \u767b\u5f55\u540e\u590d\u5236 2. \u666e\u901a for \u5faa\u73af \u666e\u901a\u7684 for \u5faa\u73af\u901a\u8fc7\u4f7f\u7528\u7d22\u5f15\u503c\u6765\u904d\u5386\u6570\u7ec4\u5143\u7d20\uff1a int[] numbers = {1, 2, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-39487","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39487","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=39487"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39487\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=39487"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=39487"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=39487"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}