{"id":65318,"date":"2025-05-03T14:40:40","date_gmt":"2025-05-03T06:40:40","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65318\/"},"modified":"2025-05-03T14:40:40","modified_gmt":"2025-05-03T06:40:40","slug":"java%e5%87%bd%e6%95%b0%e6%80%8e%e4%b9%88%e4%bc%a0%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65318\/","title":{"rendered":"java\u51fd\u6570\u600e\u4e48\u4f20\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  java \u4e2d\u4f20\u9012\u6570\u7ec4\u7684\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a\u6309\u503c\u4f20\u9012\uff1a\u5c06\u6570\u7ec4\u7684\u526f\u672c\u4f20\u9012\u7ed9\u51fd\u6570\uff0c\u51fd\u6570\u4fee\u6539\u4e0d\u4f1a\u5f71\u54cd\u539f\u6570\u7ec4\u3002\u6309\u5f15\u7528\u4f20\u9012\uff1a\u5c06\u6570\u7ec4\u672c\u8eab\u4f20\u9012\u7ed9\u51fd\u6570\uff0c\u51fd\u6570\u4fee\u6539\u4f1a\u53cd\u6620\u5728\u539f\u6570\u7ec4\u4e2d\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/12\/2024111220184684734.jpg\" class=\"aligncenter\" title=\"java\u51fd\u6570\u600e\u4e48\u4f20\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u51fd\u6570\u600e\u4e48\u4f20\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u51fd\u6570\u4e2d\u5982\u4f55\u4f20\u9012\u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u6570\u7ec4\u662f\u4e00\u79cd\u5bf9\u8c61\uff0c\u56e0\u6b64\u53ef\u4ee5\u50cf\u5176\u4ed6\u5bf9\u8c61\u4e00\u6837\u4f20\u9012\u7ed9\u51fd\u6570\u3002\u4f20\u9012\u6570\u7ec4\u7684\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\u662f\u6309\u503c\u4f20\u9012\u548c\u6309\u5f15\u7528\u4f20\u9012\u3002<\/p>\n<p><strong>\u6309\u503c\u4f20\u9012<\/strong><\/p>\n<p>\u6309\u503c\u4f20\u9012\u65f6\uff0c\u5c06\u6570\u7ec4\u7684\u4e00\u4e2a\u526f\u672c\u4f20\u9012\u7ed9\u51fd\u6570\u3002\u8fd9\u610f\u5473\u7740\u51fd\u6570\u5bf9\u6570\u7ec4\u6240\u505a\u7684\u4efb\u4f55\u66f4\u6539\u90fd\u4e0d\u4f1a\u5f71\u54cd\u539f\u59cb\u6570\u7ec4\u3002\u8981\u6309\u503c\u4f20\u9012\u6570\u7ec4\uff0c\u53ea\u9700\u5c06\u6570\u7ec4\u4f5c\u4e3a\u51fd\u6570\u53c2\u6570\u4f20\u9012\u5373\u53ef\u3002\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>public void printArray(int[] arr) {\n    for (int i = 0; i &lt; arr.length; i++) {\n        System.out.println(arr[i]);\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8c03\u7528\u8be5\u51fd\u6570\u65f6\uff0c\u53ef\u4ee5\u50cf\u8fd9\u6837\u6309\u503c\u4f20\u9012\u6570\u7ec4\uff1a<\/p>\n<pre>int[] arr = {1, 2, 3};\nprintArray(arr);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6309\u5f15\u7528\u4f20\u9012<\/strong><\/p>\n<p>\u6309\u5f15\u7528\u4f20\u9012\u65f6\uff0c\u5c06\u6570\u7ec4\u672c\u8eab\u4f20\u9012\u7ed9\u51fd\u6570\u3002\u8fd9\u610f\u5473\u7740\u51fd\u6570\u5bf9\u6570\u7ec4\u6240\u505a\u7684\u4efb\u4f55\u66f4\u6539\u90fd\u4f1a\u5f71\u54cd\u539f\u59cb\u6570\u7ec4\u3002\u8981\u6309\u5f15\u7528\u4f20\u9012\u6570\u7ec4\uff0c\u9700\u8981\u4f7f\u7528 Java 8 \u4e2d\u5f15\u5165\u7684 @NonNull \u6ce8\u91ca\u6765\u6307\u5b9a\u6570\u7ec4\u4e0d\u80fd\u4e3a\u7a7a\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>public void modifyArray(int[] @NonNull arr) {\n    arr[0] = 10;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8c03\u7528\u8be5\u51fd\u6570\u65f6\uff0c\u53ef\u4ee5\u50cf\u8fd9\u6837\u6309\u5f15\u7528\u4f20\u9012\u6570\u7ec4\uff1a<\/p>\n<pre>int[] arr = {1, 2, 3};\nmodifyArray(arr);\nSystem.out.println(arr[0]); \/\/ \u8f93\u51fa 10<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u9009\u62e9\u54ea\u79cd\u4f20\u9012\u65b9\u5f0f<\/strong><\/p>\n<p>\u9009\u62e9\u6309\u503c\u4f20\u9012\u8fd8\u662f\u6309\u5f15\u7528\u4f20\u9012\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u573a\u666f\u3002\u901a\u5e38\uff0c\u6309\u503c\u4f20\u9012\u662f\u66f4\u5b89\u5168\u7684\u9009\u62e9\uff0c\u56e0\u4e3a\u5b83\u4e0d\u4f1a\u5f71\u54cd\u539f\u59cb\u6570\u7ec4\u3002\u4f46\u662f\uff0c\u5982\u679c\u9700\u8981\u51fd\u6570\u76f4\u63a5\u4fee\u6539\u539f\u59cb\u6570\u7ec4\uff0c\u5219\u5e94\u4f7f\u7528\u6309\u5f15\u7528\u4f20\u9012\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u51fd\u6570\u600e\u4e48\u4f20\u6570\u7ec4\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>java \u4e2d\u4f20\u9012\u6570\u7ec4\u7684\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a\u6309\u503c\u4f20\u9012\uff1a\u5c06\u6570\u7ec4\u7684\u526f\u672c\u4f20\u9012\u7ed9\u51fd\u6570\uff0c\u51fd\u6570\u4fee\u6539\u4e0d\u4f1a\u5f71\u54cd\u539f\u6570\u7ec4\u3002\u6309\u5f15\u7528\u4f20\u9012\uff1a\u5c06\u6570\u7ec4\u672c\u8eab\u4f20\u9012\u7ed9\u51fd\u6570\uff0c\u51fd\u6570\u4fee\u6539\u4f1a\u53cd\u6620\u5728\u539f\u6570\u7ec4\u4e2d\u3002 Java \u51fd\u6570\u4e2d\u5982\u4f55\u4f20\u9012\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u6570\u7ec4\u662f\u4e00\u79cd\u5bf9\u8c61\uff0c\u56e0\u6b64\u53ef\u4ee5\u50cf\u5176\u4ed6\u5bf9\u8c61\u4e00\u6837\u4f20\u9012\u7ed9\u51fd\u6570\u3002\u4f20\u9012\u6570\u7ec4\u7684\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\u662f\u6309\u503c\u4f20\u9012\u548c\u6309\u5f15\u7528\u4f20\u9012\u3002 \u6309\u503c\u4f20\u9012 \u6309\u503c\u4f20\u9012\u65f6\uff0c\u5c06\u6570\u7ec4\u7684\u4e00\u4e2a\u526f\u672c\u4f20\u9012\u7ed9\u51fd\u6570\u3002\u8fd9\u610f\u5473\u7740\u51fd\u6570\u5bf9\u6570\u7ec4\u6240\u505a\u7684\u4efb\u4f55\u66f4\u6539\u90fd\u4e0d\u4f1a\u5f71\u54cd\u539f\u59cb\u6570\u7ec4\u3002\u8981\u6309\u503c\u4f20\u9012\u6570\u7ec4\uff0c\u53ea\u9700\u5c06\u6570\u7ec4\u4f5c\u4e3a\u51fd\u6570\u53c2\u6570\u4f20\u9012\u5373\u53ef\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b public void printArray(int[] arr) { for (int i = 0; i &lt; arr.length; i++) { System.out.println(arr[i]); } } \u767b\u5f55\u540e\u590d\u5236 \u8c03\u7528\u8be5\u51fd\u6570\u65f6\uff0c\u53ef\u4ee5\u50cf\u8fd9\u6837\u6309\u503c\u4f20\u9012\u6570\u7ec4\uff1a int[] arr = {1, 2, 3}; printArray(arr); \u767b\u5f55\u540e\u590d\u5236 \u6309\u5f15\u7528\u4f20\u9012 \u6309\u5f15\u7528\u4f20\u9012\u65f6\uff0c\u5c06\u6570\u7ec4\u672c\u8eab\u4f20\u9012\u7ed9\u51fd\u6570\u3002\u8fd9\u610f\u5473\u7740\u51fd\u6570\u5bf9\u6570\u7ec4\u6240\u505a\u7684\u4efb\u4f55\u66f4\u6539\u90fd\u4f1a\u5f71\u54cd\u539f\u59cb\u6570\u7ec4\u3002\u8981\u6309\u5f15\u7528\u4f20\u9012\u6570\u7ec4\uff0c\u9700\u8981\u4f7f\u7528 Java 8 \u4e2d\u5f15\u5165\u7684 @NonNull \u6ce8\u91ca\u6765\u6307\u5b9a\u6570\u7ec4\u4e0d\u80fd\u4e3a\u7a7a\u3002\u4f8b\u5982\uff1a public void modifyArray(int[] @NonNull arr) { arr[0] = 10; } [&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-65318","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65318","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=65318"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65318\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65318"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65318"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}