{"id":37003,"date":"2024-11-26T15:55:26","date_gmt":"2024-11-26T07:55:26","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37003\/"},"modified":"2024-11-26T15:55:26","modified_gmt":"2024-11-26T07:55:26","slug":"java%e6%80%8e%e4%b9%88%e8%bf%94%e5%9b%9e%e7%a9%ba%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37003\/","title":{"rendered":"java\u600e\u4e48\u8fd4\u56de\u7a7a\u6570\u7ec4"},"content":{"rendered":"

\n java \u4e2d\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\u53ef\u7528\u4e8e\u8fd4\u56de\u7a7a\u6570\u7ec4\uff1a\u76f4\u63a5\u521d\u59cb\u5316\uff1aint[] emptyarray = new int[0];\u4f7f\u7528 arrays.emptyarray() \u65b9\u6cd5\uff1aint[] emptyarray = arrays.emptyarray();\u8fd4\u56de\u7a7a\u6570\u7ec4\u6709\u52a9\u4e8e\u9632\u6b62\u7a7a\u6307\u9488\u5f02\u5e38\u3001\u8868\u793a\u4e0d\u5b58\u5728\u6216\u4f5c\u4e3a\u54e8\u5175\u503c\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u8fd4\u56de\u7a7a\u6570\u7ec4\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u4f7f\u7528 Java \u8fd4\u56de\u7a7a\u6570\u7ec4<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u8fd4\u56de\u7a7a\u6570\u7ec4\u53ef\u4ee5\u901a\u8fc7\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\u5b9e\u73b0\uff1a<\/p>\n

\u65b9\u6cd5 1\uff1a\u76f4\u63a5\u521d\u59cb\u5316<\/strong><\/p>\n

int[] emptyArray = new int[0];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u76f4\u63a5\u521b\u5efa\u4e86\u4e00\u4e2a\u957f\u5ea6\u4e3a 0 \u7684\u6570\u7ec4\u5e76\u5c06\u5176\u8d4b\u503c\u7ed9\u53d8\u91cf emptyArray\u3002<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
\u65b9\u6cd5 2\uff1a\u4f7f\u7528 Arrays.emptyArray()<\/strong><\/p>\n
int[] emptyArray = Arrays.emptyArray();<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8be5 emptyArray() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u8868\u793a\u7a7a\u6570\u7ec4\u7684\u65b9\u4fbf\u65b9\u6cd5\u3002<\/p>\n
\u4f7f\u7528\u7a7a\u6570\u7ec4\u7684\u4f18\u70b9<\/strong><\/p>\n
\u8fd4\u56de\u7a7a\u6570\u7ec4\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u975e\u5e38\u6709\u7528\uff0c\u4f8b\u5982\uff1a<\/p>\n
    \n
  •  \u9632\u6b62\u7a7a\u6307\u9488\u5f02\u5e38\uff1a<\/strong>\u5f53\u9700\u8981\u8fd4\u56de\u6570\u7ec4\u4f46\u6ca1\u6709\u5b9e\u9645\u6570\u636e\u65f6\uff0c\u8fd4\u56de\u7a7a\u6570\u7ec4\u53ef\u4ee5\u9632\u6b62\u7a7a\u6307\u9488\u5f02\u5e38\u3002<\/li>\n
  •  \u8868\u793a\u4e0d\u5b58\u5728\uff1a<\/strong>\u7a7a\u6570\u7ec4\u53ef\u4ee5\u8868\u793a\u67d0\u4e2a\u503c\u6216\u96c6\u5408\u4e0d\u5b58\u5728\u3002<\/li>\n
  •  \u54e8\u5175\u503c\uff1a<\/strong>\u7a7a\u6570\u7ec4\u8fd8\u53ef\u7528\u4f5c\u54e8\u5175\u503c\uff0c\u8868\u793a\u67d0\u4e2a\u6761\u4ef6\u7684\u7ed3\u675f\u6216\u7ec8\u6b62\u3002<\/li>\n<\/ul>\n
    \u6ce8\u610f\u8981\u70b9<\/strong><\/p>\n
      \n
    • Java \u4e2d\u7684\u6570\u7ec4\u4e0d\u53ef\u53d8\uff0c\u56e0\u6b64\u4e0d\u80fd\u76f4\u63a5\u4fee\u6539\u7a7a\u6570\u7ec4\u3002<\/li>\n
    • \u867d\u7136\u7a7a\u6570\u7ec4\u7684\u957f\u5ea6\u4e3a 0\uff0c\u4f46\u5b83\u4ecd\u7136\u662f\u4e00\u4e2a\u6709\u6548\u7684\u6570\u7ec4\u5bf9\u8c61\u3002<\/li>\n
    • \u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u8fd4\u56de\u4e00\u4e2a\u5305\u542b null \u503c\u7684\u6570\u7ec4\u53ef\u80fd\u6bd4\u8fd4\u56de\u7a7a\u6570\u7ec4\u66f4\u5408\u9002\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u8fd4\u56de\u7a7a\u6570\u7ec4\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":"
      java \u4e2d\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\u53ef\u7528\u4e8e\u8fd4\u56de\u7a7a\u6570\u7ec4\uff1a\u76f4\u63a5\u521d\u59cb\u5316\uff1aint[] emptyarray = new int[0];\u4f7f\u7528 arrays.emptyarray() \u65b9\u6cd5\uff1aint[] emptyarray = arrays.emptyarray();\u8fd4\u56de\u7a7a\u6570\u7ec4\u6709\u52a9\u4e8e\u9632\u6b62\u7a7a\u6307\u9488\u5f02\u5e38\u3001\u8868\u793a\u4e0d\u5b58\u5728\u6216\u4f5c\u4e3a\u54e8\u5175\u503c\u3002 \u5982\u4f55\u4f7f\u7528 Java \u8fd4\u56de\u7a7a\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u8fd4\u56de\u7a7a\u6570\u7ec4\u53ef\u4ee5\u901a\u8fc7\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\u5b9e\u73b0\uff1a \u65b9\u6cd5 1\uff1a\u76f4\u63a5\u521d\u59cb\u5316 int[] emptyArray = new int[0]; \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u79cd\u65b9\u6cd5\u76f4\u63a5\u521b\u5efa\u4e86\u4e00\u4e2a\u957f\u5ea6\u4e3a 0 \u7684\u6570\u7ec4\u5e76\u5c06\u5176\u8d4b\u503c\u7ed9\u53d8\u91cf emptyArray\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u65b9\u6cd5 2\uff1a\u4f7f\u7528 Arrays.emptyArray() int[] emptyArray = Arrays.emptyArray(); \u767b\u5f55\u540e\u590d\u5236 \u8be5 emptyArray() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u8868\u793a\u7a7a\u6570\u7ec4\u7684\u65b9\u4fbf\u65b9\u6cd5\u3002 \u4f7f\u7528\u7a7a\u6570\u7ec4\u7684\u4f18\u70b9 \u8fd4\u56de\u7a7a\u6570\u7ec4\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u975e\u5e38\u6709\u7528\uff0c\u4f8b\u5982\uff1a \u9632\u6b62\u7a7a\u6307\u9488\u5f02\u5e38\uff1a\u5f53\u9700\u8981\u8fd4\u56de\u6570\u7ec4\u4f46\u6ca1\u6709\u5b9e\u9645\u6570\u636e\u65f6\uff0c\u8fd4\u56de\u7a7a\u6570\u7ec4\u53ef\u4ee5\u9632\u6b62\u7a7a\u6307\u9488\u5f02\u5e38\u3002 \u8868\u793a\u4e0d\u5b58\u5728\uff1a\u7a7a\u6570\u7ec4\u53ef\u4ee5\u8868\u793a\u67d0\u4e2a\u503c\u6216\u96c6\u5408\u4e0d\u5b58\u5728\u3002 \u54e8\u5175\u503c\uff1a\u7a7a\u6570\u7ec4\u8fd8\u53ef\u7528\u4f5c\u54e8\u5175\u503c\uff0c\u8868\u793a\u67d0\u4e2a\u6761\u4ef6\u7684\u7ed3\u675f\u6216\u7ec8\u6b62\u3002 \u6ce8\u610f\u8981\u70b9 Java \u4e2d\u7684\u6570\u7ec4\u4e0d\u53ef\u53d8\uff0c\u56e0\u6b64\u4e0d\u80fd\u76f4\u63a5\u4fee\u6539\u7a7a\u6570\u7ec4\u3002 \u867d\u7136\u7a7a\u6570\u7ec4\u7684\u957f\u5ea6\u4e3a 0\uff0c\u4f46\u5b83\u4ecd\u7136\u662f\u4e00\u4e2a\u6709\u6548\u7684\u6570\u7ec4\u5bf9\u8c61\u3002 \u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u8fd4\u56de\u4e00\u4e2a\u5305\u542b null \u503c\u7684\u6570\u7ec4\u53ef\u80fd\u6bd4\u8fd4\u56de\u7a7a\u6570\u7ec4\u66f4\u5408\u9002\u3002 \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u8fd4\u56de\u7a7a\u6570\u7ec4\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/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-37003","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37003","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=37003"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37003\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37003"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37003"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37003"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}