{"id":34490,"date":"2024-11-26T17:45:17","date_gmt":"2024-11-26T09:45:17","guid":{"rendered":"https:\/\/fwq.ai\/blog\/34490\/"},"modified":"2024-11-26T17:45:17","modified_gmt":"2024-11-26T09:45:17","slug":"%e5%87%bd%e6%95%b0%e6%8c%87%e9%92%88%e6%95%b0%e7%bb%84%e5%9c%a8java%e4%b8%ad%e6%80%8e%e4%b9%88%e7%94%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/34490\/","title":{"rendered":"\u51fd\u6570\u6307\u9488\u6570\u7ec4\u5728java\u4e2d\u600e\u4e48\u7528"},"content":{"rendered":"

\n java \u4e2d\u7684\u51fd\u6570\u6307\u9488\u6570\u7ec4\u662f\u4e00\u79cd\u6307\u5411\u51fd\u6570\u7684\u6570\u7ec4\uff0c\u5141\u8bb8\u4ee5\u52a8\u6001\u65b9\u5f0f\u8c03\u7528\u65b9\u6cd5\uff0c\u63d0\u4f9b\u7075\u6d3b\u6027\u3002\u8bed\u6cd5\uff1afunction[] functionpointerarray = new function[n]\u3002\u521b\u5efa\u6570\u7ec4\u540e\uff0c\u53ef\u4ee5\u586b\u5145\u51fd\u6570\u6307\u9488\u5e76\u901a\u8fc7\u8fed\u4ee3\u6570\u7ec4\u8c03\u7528\u51fd\u6570\uff08\u5982\u4e0a\u8ff0\u793a\u4f8b\u6240\u793a\uff09\u3002\u4f18\u70b9\u5305\u62ec\u7075\u6d3b\u6027\u3001\u53ef\u91cd\u7528\u6027\u548c\u4ee3\u7801\u7b80\u5316\u3002\n<\/p><\/blockquote>\n

\"\u51fd\u6570\u6307\u9488\u6570\u7ec4\u5728java\u4e2d\u600e\u4e48\u7528\u63d2\u56fe\"<\/p>\n

\u51fd\u6570\u6307\u9488\u6570\u7ec4\u5728 Java \u4e2d\u7684\u4f7f\u7528<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u51fd\u6570\u6307\u9488\u6570\u7ec4\u662f\u4e00\u79cd\u6307\u5411\u51fd\u6570\u7684\u53d8\u91cf\u6570\u7ec4\u3002\u5b83\u5141\u8bb8\u4ee5\u52a8\u6001\u65b9\u5f0f\u8c03\u7528\u65b9\u6cd5\uff0c\u63d0\u4f9b\u66f4\u9ad8\u7684\u7075\u6d3b\u6027\u3002<\/p>\n

\u8bed\u6cd5<\/strong><\/p>\n

Function<Input, Output>[] functionPointerArray = new Function[n];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff1a<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
    \n
  • Function \u662f\u4e00\u4e2a\u51fd\u6570\u5f0f\u63a5\u53e3\uff0c\u5b83\u63a5\u6536\u4e00\u4e2a\u8f93\u5165\u53c2\u6570\u5e76\u8fd4\u56de\u4e00\u4e2a\u8f93\u51fa\u503c\u3002<\/li>\n
  • Input \u548c Output \u662f\u51fd\u6570\u7684\u8f93\u5165\u548c\u8f93\u51fa\u7c7b\u578b\u3002<\/li>\n
  • n \u662f\u6570\u7ec4\u7684\u5927\u5c0f\u3002<\/li>\n<\/ul>\n
    \u521b\u5efa\u51fd\u6570\u6307\u9488\u6570\u7ec4<\/strong><\/p>\n
    \/\/ \u521b\u5efa\u4e00\u4e2a\u6307\u5411\u6253\u5370 int \u65b9\u6cd5\u7684\u51fd\u6570\u6307\u9488\u6570\u7ec4\nFunction<Integer, Void>[] printIntArray = new Function[3];\n\n\/\/ \u586b\u5145\u6570\u7ec4\nprintIntArray[0] = System.out::println;\nprintIntArray[1] = System.out::printf;\nprintIntArray[2] = (i) -> System.out.println(\"Int: \" + i);<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u8c03\u7528\u51fd\u6570\u6307\u9488\u6570\u7ec4<\/strong><\/p>\n
    \/\/ \u8fed\u4ee3\u6570\u7ec4\u5e76\u8c03\u7528\u6bcf\u4e2a\u51fd\u6570\nfor (Function<Integer, Void> printInt : printIntArray) {\n    printInt.apply(10);\n}<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u8fd9\u5c06\u8f93\u51fa\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n
    10\nInt: 10\n10<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u4f18\u70b9<\/strong><\/p>\n
    \u4f7f\u7528\u51fd\u6570\u6307\u9488\u6570\u7ec4\u63d0\u4f9b\u4e86\u4ee5\u4e0b\u4f18\u70b9\uff1a<\/p>\n
      \n
    •  \u7075\u6d3b\u6027\uff1a<\/strong> \u5141\u8bb8\u5728\u8fd0\u884c\u65f6\u52a8\u6001\u8c03\u7528\u65b9\u6cd5\u3002<\/li>\n
    •  \u53ef\u91cd\u7528\u6027\uff1a<\/strong> \u53ef\u4ee5\u521b\u5efa\u901a\u7528\u7684\u51fd\u6570\u6307\u9488\u6570\u7ec4\u5e76\u5728\u4e0d\u540c\u4e0a\u4e0b\u6587\u4e2d\u91cd\u7528\u3002<\/li>\n
    •  \u4ee3\u7801\u7b80\u5316\uff1a<\/strong> \u6d88\u9664\u4e86\u4f7f\u7528 if-else \u6216  \u8bed\u53e5\u8fdb\u884c\u65b9\u6cd5\u8c03\u7528\u7684\u9700\u8981\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662f\u51fd\u6570\u6307\u9488\u6570\u7ec4\u5728java\u4e2d\u600e\u4e48\u7528\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\u7684\u51fd\u6570\u6307\u9488\u6570\u7ec4\u662f\u4e00\u79cd\u6307\u5411\u51fd\u6570\u7684\u6570\u7ec4\uff0c\u5141\u8bb8\u4ee5\u52a8\u6001\u65b9\u5f0f\u8c03\u7528\u65b9\u6cd5\uff0c\u63d0\u4f9b\u7075\u6d3b\u6027\u3002\u8bed\u6cd5\uff1afunction[] functionpointerarray = new function[n]\u3002\u521b\u5efa\u6570\u7ec4\u540e\uff0c\u53ef\u4ee5\u586b\u5145\u51fd\u6570\u6307\u9488\u5e76\u901a\u8fc7\u8fed\u4ee3\u6570\u7ec4\u8c03\u7528\u51fd\u6570\uff08\u5982\u4e0a\u8ff0\u793a\u4f8b\u6240\u793a\uff09\u3002\u4f18\u70b9\u5305\u62ec\u7075\u6d3b\u6027\u3001\u53ef\u91cd\u7528\u6027\u548c\u4ee3\u7801\u7b80\u5316\u3002 \u51fd\u6570\u6307\u9488\u6570\u7ec4\u5728 Java \u4e2d\u7684\u4f7f\u7528 \u5728 Java \u4e2d\uff0c\u51fd\u6570\u6307\u9488\u6570\u7ec4\u662f\u4e00\u79cd\u6307\u5411\u51fd\u6570\u7684\u53d8\u91cf\u6570\u7ec4\u3002\u5b83\u5141\u8bb8\u4ee5\u52a8\u6001\u65b9\u5f0f\u8c03\u7528\u65b9\u6cd5\uff0c\u63d0\u4f9b\u66f4\u9ad8\u7684\u7075\u6d3b\u6027\u3002 \u8bed\u6cd5 Function<Input, Output>[] functionPointerArray = new Function[n]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b Function \u662f\u4e00\u4e2a\u51fd\u6570\u5f0f\u63a5\u53e3\uff0c\u5b83\u63a5\u6536\u4e00\u4e2a\u8f93\u5165\u53c2\u6570\u5e76\u8fd4\u56de\u4e00\u4e2a\u8f93\u51fa\u503c\u3002 Input \u548c Output \u662f\u51fd\u6570\u7684\u8f93\u5165\u548c\u8f93\u51fa\u7c7b\u578b\u3002 n \u662f\u6570\u7ec4\u7684\u5927\u5c0f\u3002 \u521b\u5efa\u51fd\u6570\u6307\u9488\u6570\u7ec4 \/\/ \u521b\u5efa\u4e00\u4e2a\u6307\u5411\u6253\u5370 int \u65b9\u6cd5\u7684\u51fd\u6570\u6307\u9488\u6570\u7ec4 Function<Integer, Void>[] printIntArray = new Function[3]; \/\/ \u586b\u5145\u6570\u7ec4 printIntArray[0] = System.out::println; printIntArray[1] = System.out::printf; printIntArray[2] = (i) -> System.out.println(“Int: ” […]<\/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-34490","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34490","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=34490"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34490\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=34490"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=34490"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=34490"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}