{"id":202761,"date":"2025-05-22T09:41:03","date_gmt":"2025-05-22T01:41:03","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202761\/"},"modified":"2025-05-22T09:41:03","modified_gmt":"2025-05-22T01:41:03","slug":"%e5%9c%a8-java-%e4%b8%ad%e5%87%bd%e6%95%b0%e5%bc%8f%e7%bc%96%e7%a8%8b%e7%9a%84%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202761\/","title":{"rendered":"\u5728 Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u6700\u4f73\u5b9e\u8df5\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"

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

\u5728 Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u6700\u4f73\u5b9e\u8df5\u662f\u4ec0\u4e48\uff1f<\/h1>\n

\u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\u300a\u5728 Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u6700\u4f73\u5b9e\u8df5\u662f\u4ec0\u4e48\uff1f\u300b<\/span>\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec<\/span>\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~<\/p>\n

\u5728 Java \u4e2d\u5b9e\u65bd\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u6700\u4f73\u5b9e\u8df5\u5305\u62ec\uff1a\u4f7f\u7528\u7eaf\u51fd\u6570\uff0c\u907f\u514d\u526f\u4f5c\u7528\uff0c\u5229\u7528\u4e0d\u53ef\u53d8\u6570\u636e\uff0c\u5229\u7528\u9ad8\u9636\u51fd\u6570\u548c\u5ef6\u8fdf\u6c42\u503c\u3002\u5b9e\u8df5\u6848\u4f8b\u4e2d\uff0c\u51fd\u6570\u5f0f\u65b9\u6cd5\u4f7f\u7528\u9ad8\u9636\u51fd\u6570\u548c lambda \u8868\u8fbe\u5f0f\u62bd\u8c61\u6253\u5370\u64cd\u4f5c\uff0c\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u91cd\u7528\u6027\u3002<\/p>\n

<\/p>\n

\u5728 Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n

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

\u51fd\u6570\u5f0f\u7f16\u7a0b (FP) \u662f\u4e00\u79cd\u7f16\u7a0b\u8303\u5f0f\uff0c\u5b83\u5f3a\u8c03\u4f7f\u7528\u7eaf\u51fd\u6570\u3001\u4e0d\u53ef\u53d8\u6570\u636e\u4ee5\u53ca\u9ad8\u9636\u51fd\u6570\u3002\u5728 Java \u4e2d\uff0c\u4f7f\u7528 FP \u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3001\u53ef\u7ef4\u62a4\u6027\u548c\u6027\u80fd\u3002<\/p>\n

\u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n

1. \u4f7f\u7528\u7eaf\u51fd\u6570<\/strong><\/p>\n

\u7eaf\u51fd\u6570\u4e0d\u4f1a\u4fee\u6539\u5176\u8f93\u5165\u6216\u4ea7\u751f\u526f\u4f5c\u7528\u3002\u5b83\u4eec\u66f4\u6613\u4e8e\u63a8\u7406\u548c\u6d4b\u8bd5\uff0c\u4ece\u800c\u964d\u4f4e\u4e86\u9519\u8bef\u7684\u98ce\u9669\u3002<\/p>\n

public int add(int a, int b) {\n    return a + b;\n}<\/pre>\n
2. \u4f7f\u7528\u4e0d\u53ef\u53d8\u6570\u636e<\/strong><\/p>\n
\u4e0d\u53ef\u53d8\u6570\u636e\u4e0d\u80fd\u88ab\u4fee\u6539\uff0c\u8fd9\u6d88\u9664\u4e86\u540c\u65f6\u4fee\u6539\u540c\u4e00\u6570\u636e\u7684\u591a\u7ebf\u7a0b\u5e76\u53d1\u95ee\u9898\u3002<\/p>\n
public List<String> addElement(List<String> list, String element) {\n    return Stream.concat(list.stream(), Stream.of(element)).toList();\n}<\/pre>\n
3. \u5229\u7528\u9ad8\u9636\u51fd\u6570<\/strong><\/p>\n
\u9ad8\u9636\u51fd\u6570\u5c06\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\u6216\u8fd4\u56de\u4e00\u4e2a\u51fd\u6570\u3002\u5b83\u4eec\u63d0\u4f9b\u4e86\u9ad8\u5ea6\u7684\u62bd\u8c61\u548c\u53ef\u91cd\u7528\u6027\u3002<\/p>\n
public List<String> filterStrings(List<String> list, Predicate<String> predicate) {\n    return list.stream().filter(predicate).toList();\n}<\/pre>\n
4. \u4f7f\u7528\u61d2\u60f0\u6c42\u503c<\/strong><\/p>\n
\u61d2\u60f0\u6c42\u503c\u5ef6\u8fdf\u5bf9\u6570\u636e\u7ed3\u6784\u7684\u6c42\u503c\uff0c\u76f4\u5230\u5b83\u4eec\u5b9e\u9645\u9700\u8981\u4e3a\u6b62\u3002\u8fd9\u53ef\u4ee5\u63d0\u9ad8\u5185\u5b58\u6d88\u8017\u6548\u7387\u3002<\/p>\n
public Stream<Integer> generateFibonacci() {\n    return Stream.iterate(new int[]{0, 1}, t -> new int[]{t[1], t[0] + t[1]}).mapToInt(t -> t[0]);\n}<\/pre>\n
5. \u907f\u514d\u526f\u4f5c\u7528<\/strong><\/p>\n
\u526f\u4f5c\u7528\u662f\u4fee\u6539\u5916\u754c\u72b6\u6001\u7684\u64cd\u4f5c\uff0c\u4f8b\u5982\u6253\u5370\u8f93\u51fa\u6216\u4fee\u6539\u5916\u90e8\u53d8\u91cf\u3002\u5728 FP \u4e2d\uff0c\u526f\u4f5c\u7528\u4f1a\u590d\u6742\u5316\u63a8\u7406\u548c\u5e76\u884c\u6027\u3002<\/p>\n
public void printMessage(String message) {\n    System.out.println(message);\n}<\/pre>\n
\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n
\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u8d2d\u7269\u6e05\u5355\uff0c\u5e76\u60f3\u5c06\u5176\u6253\u5370\u5230\u63a7\u5236\u53f0\u3002<\/p>\n
\u975e\u51fd\u6570\u5f0f\u65b9\u6cd5\uff1a<\/strong><\/p>\n
public static void main(String[] args) {\n    List<String> shoppingList = List.of(\"apples\", \"bananas\", \"oranges\");\n    for (String item : shoppingList) {\n        System.out.println(item);\n    }\n}<\/pre>\n
\u51fd\u6570\u5f0f\u65b9\u6cd5\uff1a<\/strong><\/p>\n
public static void main(String[] args) {\n    List<String> shoppingList = List.of(\"apples\", \"bananas\", \"oranges\");\n    Consumer<String> printItem = item -> System.out.println(item);\n    shoppingList.forEach(printItem);\n}<\/pre>\n
\u51fd\u6570\u5f0f\u65b9\u6cd5\u4f7f\u7528\u9ad8\u9636\u51fd\u6570 forEach<\/code> \u548c lambda \u8868\u8fbe\u5f0f printItem<\/code> \u62bd\u8c61\u4e86\u6253\u5370\u64cd\u4f5c\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u91cd\u7528\u6027\u3002<\/p>\n
\u6587\u4e2d\u5173\u4e8ejava,\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300a\u5728 Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u6700\u4f73\u5b9e\u8df5\u662f\u4ec0\u4e48\uff1f\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728 Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u6700\u4f73...<\/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-202761","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202761","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=202761"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202761\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202761"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202761"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202761"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}