{"id":202764,"date":"2025-05-22T11:32:16","date_gmt":"2025-05-22T03:32:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202764\/"},"modified":"2025-05-22T11:32:16","modified_gmt":"2025-05-22T03:32:16","slug":"java%e5%87%bd%e6%95%b0%e5%bc%8f%e6%8e%a5%e5%8f%a3%e7%9a%84%e7%b1%bb%e5%9e%8b%e5%92%8c%e7%89%b9%e7%82%b9","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202764\/","title":{"rendered":"Java\u51fd\u6570\u5f0f\u63a5\u53e3\u7684\u7c7b\u578b\u548c\u7279\u70b9"},"content":{"rendered":"

<\/b> <\/p>\n

Java\u51fd\u6570\u5f0f\u63a5\u53e3\u7684\u7c7b\u578b\u548c\u7279\u70b9<\/h1>\n

\u5b66\u4e60\u6587\u7ae0<\/span>\u8981\u52aa\u529b\uff0c\u4f46\u662f\u4e0d\u8981\u6025\uff01\u4eca\u5929\u7684\u8fd9\u7bc7\u6587\u7ae0\u300aJava\u51fd\u6570\u5f0f\u63a5\u53e3\u7684\u7c7b\u578b\u548c\u7279\u70b9\u300b<\/span>\u5c06\u4f1a\u4ecb\u7ecd\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u60f3\u6df1\u5165\u5b66\u4e60\u6587\u7ae0<\/span>\uff0c\u53ef\u4ee5\u5173\u6ce8\u6211\uff01\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\u7684\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u80fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n

\u51fd\u6570\u5f0f\u63a5\u53e3\u662f\u4e00\u79cd\u53ea\u5305\u542b\u4e00\u4e2a\u672a\u5b9e\u73b0\u7684\u65b9\u6cd5\uff08\u62bd\u8c61\u65b9\u6cd5\uff09\u7684\u63a5\u53e3\u7c7b\u578b\u3002\u5b83\u4e3b\u8981\u7528\u4e8e\u8868\u793a\u884c\u4e3a\uff0c\u5141\u8bb8\u4f7f\u7528Lambda\u8868\u8fbe\u5f0f\u548c\u65b9\u6cd5\u5f15\u7528\u4f20\u9012\u548c\u4f7f\u7528\u884c\u4e3a\u3002Java\u9884\u5b9a\u4e49\u7684\u51fd\u6570\u5f0f\u63a5\u53e3\u7c7b\u578b\u5305\u62ecPredicate\u3001Function\u3001Consumer\u548cSupplier\u3002<\/p>\n

<\/p>\n

Java\u51fd\u6570\u5f0f\u63a5\u53e3\u7684\u7c7b\u578b\u548c\u7279\u70b9<\/h2>\n

\u7b80\u4ecb<\/strong><\/p>\n

\u51fd\u6570\u5f0f\u63a5\u53e3\u662fJava 8\u4e2d\u5f15\u5165\u7684\u4e00\u79cd\u65b0\u7684\u63a5\u53e3\u7c7b\u578b\u3002\u5b83\u53ea\u6709\u4e00\u200b\u200b\u4e2a\u672a\u5b9e\u73b0\u7684\u65b9\u6cd5\uff0c\u79f0\u4e3a\u201c\u62bd\u8c61\u65b9\u6cd5\u201d\u3002\u51fd\u6570\u5f0f\u63a5\u53e3\u5141\u8bb8\u5c06\u884c\u4e3a\u8868\u793a\u4e3a\u5bf9\u8c61\uff0c\u4ece\u800c\u5728\u7a0b\u5e8f\u4e2d\u65b9\u4fbf\u5730\u4f7f\u7528\u548c\u4f20\u9012Lambda\u8868\u8fbe\u5f0f\u548c\u65b9\u6cd5\u5f15\u7528\u3002<\/p>\n

\u7c7b\u578b<\/strong><\/p>\n

Java\u4e2d\u9884\u5b9a\u4e49\u4e86\u591a\u4e2a\u51fd\u6570\u5f0f\u63a5\u53e3\u7c7b\u578b\uff0c\u5305\u62ec\uff1a<\/p>\n

    \n
  • Predicate<T><\/code>\uff1a\u7528\u4e8e\u6d4b\u8bd5\u7ed9\u5b9a\u5bf9\u8c61\u662f\u5426\u7b26\u5408\u67d0\u4e2a\u6761\u4ef6\u3002<\/li>\n
  • Function<T, R><\/code>\uff1a\u7528\u4e8e\u4ece\u7ed9\u5b9a\u5bf9\u8c61\u751f\u6210\u65b0\u5bf9\u8c61\u6216\u503c\u3002<\/li>\n
  • Consumer<T><\/code>\uff1a\u7528\u4e8e\u5bf9\u7ed9\u5b9a\u5bf9\u8c61\u6267\u884c\u64cd\u4f5c\u3002<\/li>\n
  • Supplier<T><\/code>\uff1a\u7528\u4e8e\u63d0\u4f9b\u7ed9\u5b9a\u7c7b\u578b\u7684\u5bf9\u8c61\u3002<\/li>\n<\/ul>\n

    \u8fd8\u53ef\u4ee5\u521b\u5efa\u81ea\u5df1\u7684\u81ea\u5b9a\u4e49\u51fd\u6570\u5f0f\u63a5\u53e3\u7c7b\u578b\u3002<\/p>\n

    \u7279\u70b9<\/strong><\/p>\n

    \u51fd\u6570\u5f0f\u63a5\u53e3\u5177\u6709\u4ee5\u4e0b\u7279\u70b9\uff1a<\/p>\n

      \n
    • \u53ea\u6709\u4e00\u4e2a\u62bd\u8c61\u65b9\u6cd5\uff1a<\/strong> \u63a5\u53e3\u53ea\u5b9a\u4e49\u4e86\u4e00\u4e2a\u9700\u8981\u5b9e\u73b0\u7684\u65b9\u6cd5\u3002<\/li>\n
    • \u53ef\u4ee5\u4f5c\u4e3aLambda\u8868\u8fbe\u5f0f\u7684\u76ee\u6807\u7c7b\u578b\uff1a<\/strong> Lambda\u8868\u8fbe\u5f0f\u53ef\u4ee5\u5b9e\u73b0\u51fd\u6570\u5f0f\u63a5\u53e3\u3002<\/li>\n
    • \u53ef\u4ee5\u4f7f\u7528\u65b9\u6cd5\u5f15\u7528\uff1a<\/strong> \u73b0\u6709\u65b9\u6cd5\u53ef\u4ee5\u4f7f\u7528\u65b9\u6cd5\u5f15\u7528\u6765\u5b9e\u73b0\u51fd\u6570\u5f0f\u63a5\u53e3\u3002<\/li>\n
    • \u53ef\u4ee5\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\uff1a<\/strong> \u51fd\u6570\u5f0f\u63a5\u53e3\u5b9e\u4f8b\u53ef\u4ee5\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n

      \u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n

      \u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528\u51fd\u6570\u5f0f\u63a5\u53e3\u7684\u5b9e\u6218\u6848\u4f8b\uff1a<\/p>\n

      import java.util.function.Predicate;\n\npublic class Main {\n    public static void main(String[] args) {\n        \/\/ \u521b\u5efa\u4e00\u4e2a\u63a5\u6536\u6574\u6570\u7684Predicate\u63a5\u53e3\n        Predicate<Integer> isEven = number -> number % 2 == 0;\n\n        \/\/ \u4f7f\u7528Predicate\u63a5\u53e3\u6d4b\u8bd5\u7ed9\u5b9a\u7684\u6570\u5b57\u662f\u5426\u4e3a\u5076\u6570\n        boolean is10Even = isEven.test(10);\n        System.out.println(is10Even); \/\/ true\n    }\n}<\/pre>\n
      \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0cisEven<\/code>\u63a5\u53e3\u88ab\u7528\u4e8e\u6d4b\u8bd5\u6570\u5b57\u662f\u5426\u662f\u5076\u6570\u3002\u6211\u4eec\u901a\u8fc7\u4f7f\u7528Lambda\u8868\u8fbe\u5f0f\u5b9e\u73b0\u4e86isEven<\/code>\u63a5\u53e3\u3002\u7136\u540e\u6211\u4eec\u4f7f\u7528isEven<\/code>\u63a5\u53e3\u6d4b\u8bd5\u4e86\u6570\u5b5710\u662f\u5426\u4e3a\u5076\u6570\u3002<\/p>\n
      \u4ee5\u4e0a\u5c31\u662f\u300aJava\u51fd\u6570\u5f0f\u63a5\u53e3\u7684\u7c7b\u578b\u548c\u7279\u70b9\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      Java\u51fd\u6570\u5f0f\u63a5\u53e3\u7684\u7c7b\u578b\u548c\u7279\u70b9 ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-202764","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202764","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202764"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202764\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202764"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202764"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202764"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}