{"id":35576,"date":"2024-11-26T14:23:01","date_gmt":"2024-11-26T06:23:01","guid":{"rendered":"https:\/\/fwq.ai\/blog\/35576\/"},"modified":"2024-11-26T14:23:01","modified_gmt":"2024-11-26T06:23:01","slug":"java%e6%95%b0%e7%bb%84%e5%ad%a6%e4%b8%8d%e6%98%8e%e7%99%bd%e4%ba%86%e6%80%8e%e4%b9%88%e5%8a%9e","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/35576\/","title":{"rendered":"java\u6570\u7ec4\u5b66\u4e0d\u660e\u767d\u4e86\u600e\u4e48\u529e"},"content":{"rendered":"<blockquote><p>\n  \u6570\u7ec4\u5b66\u4e0d\u61c2\u4e86\uff1f\u522b\u6025\uff01\u7406\u89e3 java \u6570\u7ec4\u53ea\u9700\u638c\u63e1\u516d\u6b65\uff1a1. \u57fa\u672c\u6982\u5ff5\uff1a\u6570\u7ec4\u662f\u5143\u7d20\u96c6\u5408\uff0c\u6bcf\u4e2a\u5143\u7d20\u6709\u552f\u4e00\u7d22\u5f15\u30022. \u6570\u7ec4\u58f0\u660e\uff1a\u786e\u5b9a\u6570\u636e\u7c7b\u578b\u548c\u5206\u914d\u5927\u5c0f\u30023. \u8bbf\u95ee\u5143\u7d20\uff1a\u7528\u7d22\u5f15\u83b7\u53d6\u5143\u7d20\u30024. \u904d\u5386\u6570\u7ec4\uff1a\u4f7f\u7528\u5faa\u73af\u8bbf\u95ee\u6240\u6709\u5143\u7d20\u30025. \u6570\u7ec4\u65b9\u6cd5\uff1a\u5229\u7528\u5185\u7f6e\u65b9\u6cd5\u8fdb\u884c\u6392\u5e8f\u3001\u67e5\u627e\u7b49\u64cd\u4f5c\u30026. \u591a\u7ef4\u6570\u7ec4\uff1a\u652f\u6301\u66f4\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/04\/2024110406214718636.jpg\" class=\"aligncenter\" title=\"java\u6570\u7ec4\u5b66\u4e0d\u660e\u767d\u4e86\u600e\u4e48\u529e\u63d2\u56fe\" alt=\"java\u6570\u7ec4\u5b66\u4e0d\u660e\u767d\u4e86\u600e\u4e48\u529e\u63d2\u56fe\" \/><\/p>\n<p><strong>\u521d\u5b66\u8005\u5982\u4f55\u5feb\u901f\u7406\u89e3 Java \u6570\u7ec4<\/strong><\/p>\n<p>\u6570\u7ec4\u662f Java \u4e2d\u7528\u4e8e\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u5143\u7d20\u7684\u6709\u5e8f\u96c6\u5408\u3002\u7406\u89e3\u6570\u7ec4\u5bf9\u4e8e\u6709\u6548\u5730\u7ba1\u7406\u548c\u5904\u7406\u6570\u636e\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<p><strong>\u95ee\u9898\uff1a\u6570\u7ec4\u5b66\u4e0d\u660e\u767d\u4e86\u600e\u4e48\u529e\uff1f<\/strong><\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p><strong>1. \u57fa\u672c\u6982\u5ff5\uff1a<\/strong><\/p>\n<ul>\n<li>\u6570\u7ec4\u662f\u4e00\u4e2a\u56fa\u5b9a\u957f\u5ea6\u7684\u5143\u7d20\u96c6\u5408\u3002<\/li>\n<li>\u6bcf\u4e2a\u5143\u7d20\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684\u7d22\u5f15\uff0c\u4ece 0 \u5f00\u59cb\u3002<\/li>\n<li>\u6570\u7ec4\u7684\u7c7b\u578b\u53d6\u51b3\u4e8e\u5176\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u3002<\/li>\n<\/ul>\n<p><strong>2. \u6570\u7ec4\u58f0\u660e\uff1a<\/strong><\/p>\n<pre>\/\/ \u58f0\u660e\u4e00\u4e2a\u6574\u6570\u6570\u7ec4\nint[] numbers;\n\n\/\/ \u4e3a\u6570\u7ec4\u5206\u914d\u5185\u5b58\u5e76\u521d\u59cb\u5316\u5927\u5c0f\nnumbers = new int[5]; \/\/ \u521b\u5efa\u4e00\u4e2a\u53ef\u4ee5\u5bb9\u7eb3 5 \u4e2a\u6574\u6570\u7684\u6570\u7ec4<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a<\/strong><\/p>\n<ul>\n<li>\u4f7f\u7528\u7d22\u5f15 [] \u8fd0\u7b97\u7b26\u8bbf\u95ee\u5143\u7d20\u3002\u4f8b\u5982\uff0c numbers[0] \u8bbf\u95ee\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002<\/li>\n<li>\u8d85\u51fa\u6570\u7ec4\u754c\u9650\u7684\u7d22\u5f15\u5c06\u4ea7\u751f IndexOutOfBoundsException \u5f02\u5e38\u3002<\/li>\n<\/ul>\n<p><strong>4. \u904d\u5386\u6570\u7ec4\uff1a<\/strong><\/p>\n<ul>\n<li>\u4f7f\u7528 for \u5faa\u73af\u6216\u589e\u5f3a\u7684 for-each \u5faa\u73af\u904d\u5386\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u3002<\/li>\n<li>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre>\/\/ for \u5faa\u73af\nfor (int i = 0; i &lt; numbers.length; i++) {\n    System.out.println(numbers[i]);\n}\n\n\/\/ \u589e\u5f3a\u7684 for-each \u5faa\u73af\nfor (int number : numbers) {\n    System.out.println(number);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<\/ul>\n<p><strong>5. \u6570\u7ec4\u65b9\u6cd5\uff1a<\/strong><\/p>\n<ul>\n<li>\n<p>Java \u63d0\u4f9b\u4e86\u8bb8\u591a\u5185\u7f6e\u7684\u6570\u7ec4\u65b9\u6cd5\uff0c\u7528\u4e8e\u5e38\u89c1\u7684\u64cd\u4f5c\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>Arrays.sort()\uff1a\u5bf9\u6570\u7ec4\u5143\u7d20\u8fdb\u884c\u6392\u5e8f<\/li>\n<li>Arrays.binarySearch()\uff1a\u5728\u5df2\u6392\u5e8f\u6570\u7ec4\u4e2d\u4e8c\u5206\u67e5\u627e\u5143\u7d20<\/li>\n<li>Arrays.copyOf()\uff1a\u521b\u5efa\u6570\u7ec4\u7684\u526f\u672c<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>6. \u591a\u7ef4\u6570\u7ec4\uff1a<\/strong><\/p>\n<ul>\n<li>Java \u652f\u6301\u591a\u7ef4\u6570\u7ec4\uff0c\u5141\u8bb8\u5b58\u50a8\u66f4\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784\u3002<\/li>\n<li>\u4f8b\u5982\uff0c\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\u53ef\u4ee5\u8868\u793a\u4e00\u4e2a\u8868\u683c\uff0c\u5176\u4e2d\u884c\u548c\u5217\u90fd\u4f7f\u7528\u7d22\u5f15\u8fdb\u884c\u8bbf\u95ee\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>\/\/ \u58f0\u660e\u4e00\u4e2a\u4e8c\u7ef4\u6574\u6570\u6570\u7ec4\nint[][] matrix;\n\n\/\/ \u4e3a\u6570\u7ec4\u5206\u914d\u5185\u5b58\u5e76\u521d\u59cb\u5316\u5927\u5c0f\nmatrix = new int[3][4]; \/\/ \u521b\u5efa\u4e00\u4e2a 3 \u884c 4 \u5217\u7684\u77e9\u9635<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u63d0\u793a\uff1a<\/strong><\/p>\n<ul>\n<li>\u591a\u52a0\u7ec3\u4e60\u6709\u52a9\u4e8e\u589e\u5f3a\u5bf9\u6570\u7ec4\u7684\u7406\u89e3\u3002<\/li>\n<li>\u4f7f\u7528\u8c03\u8bd5\u5de5\u5177\uff08\u5982\u65ad\u70b9\uff09\u53ef\u5e2e\u52a9\u53ef\u89c6\u5316\u6570\u7ec4\u7684\u884c\u4e3a\u3002<\/li>\n<li>\u53ef\u4ee5\u53c2\u8003 Java \u5b98\u65b9\u6587\u6863\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u5b66\u4e0d\u660e\u767d\u4e86\u600e\u4e48\u529e\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":"<p>\u6570\u7ec4\u5b66\u4e0d\u61c2\u4e86\uff1f\u522b\u6025\uff01\u7406\u89e3 java \u6570\u7ec4\u53ea\u9700\u638c\u63e1\u516d\u6b65\uff1a1. \u57fa\u672c\u6982\u5ff5\uff1a\u6570\u7ec4\u662f\u5143\u7d20\u96c6\u5408\uff0c\u6bcf\u4e2a\u5143\u7d20\u6709\u552f\u4e00\u7d22\u5f15\u30022. \u6570\u7ec4\u58f0\u660e\uff1a\u786e\u5b9a\u6570\u636e\u7c7b\u578b\u548c\u5206\u914d\u5927\u5c0f\u30023. \u8bbf\u95ee\u5143\u7d20\uff1a\u7528\u7d22\u5f15\u83b7\u53d6\u5143\u7d20\u30024. \u904d\u5386\u6570\u7ec4\uff1a\u4f7f\u7528\u5faa\u73af\u8bbf\u95ee\u6240\u6709\u5143\u7d20\u30025. \u6570\u7ec4\u65b9\u6cd5\uff1a\u5229\u7528\u5185\u7f6e\u65b9\u6cd5\u8fdb\u884c\u6392\u5e8f\u3001\u67e5\u627e\u7b49\u64cd\u4f5c\u30026. \u591a\u7ef4\u6570\u7ec4\uff1a\u652f\u6301\u66f4\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784\u3002 \u521d\u5b66\u8005\u5982\u4f55\u5feb\u901f\u7406\u89e3 Java \u6570\u7ec4 \u6570\u7ec4\u662f Java \u4e2d\u7528\u4e8e\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u5143\u7d20\u7684\u6709\u5e8f\u96c6\u5408\u3002\u7406\u89e3\u6570\u7ec4\u5bf9\u4e8e\u6709\u6548\u5730\u7ba1\u7406\u548c\u5904\u7406\u6570\u636e\u81f3\u5173\u91cd\u8981\u3002 \u95ee\u9898\uff1a\u6570\u7ec4\u5b66\u4e0d\u660e\u767d\u4e86\u600e\u4e48\u529e\uff1f \u89e3\u51b3\u65b9\u6848\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b 1. \u57fa\u672c\u6982\u5ff5\uff1a \u6570\u7ec4\u662f\u4e00\u4e2a\u56fa\u5b9a\u957f\u5ea6\u7684\u5143\u7d20\u96c6\u5408\u3002 \u6bcf\u4e2a\u5143\u7d20\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684\u7d22\u5f15\uff0c\u4ece 0 \u5f00\u59cb\u3002 \u6570\u7ec4\u7684\u7c7b\u578b\u53d6\u51b3\u4e8e\u5176\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u3002 2. \u6570\u7ec4\u58f0\u660e\uff1a \/\/ \u58f0\u660e\u4e00\u4e2a\u6574\u6570\u6570\u7ec4 int[] numbers; \/\/ \u4e3a\u6570\u7ec4\u5206\u914d\u5185\u5b58\u5e76\u521d\u59cb\u5316\u5927\u5c0f numbers = new int[5]; \/\/ \u521b\u5efa\u4e00\u4e2a\u53ef\u4ee5\u5bb9\u7eb3 5 \u4e2a\u6574\u6570\u7684\u6570\u7ec4 \u767b\u5f55\u540e\u590d\u5236 3. \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a \u4f7f\u7528\u7d22\u5f15 [] \u8fd0\u7b97\u7b26\u8bbf\u95ee\u5143\u7d20\u3002\u4f8b\u5982\uff0c numbers[0] \u8bbf\u95ee\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002 \u8d85\u51fa\u6570\u7ec4\u754c\u9650\u7684\u7d22\u5f15\u5c06\u4ea7\u751f IndexOutOfBoundsException \u5f02\u5e38\u3002 4. \u904d\u5386\u6570\u7ec4\uff1a \u4f7f\u7528 [&hellip;]<\/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-35576","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35576","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=35576"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35576\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=35576"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=35576"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=35576"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}