{"id":202774,"date":"2025-05-22T09:17:03","date_gmt":"2025-05-22T01:17:03","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202774\/"},"modified":"2025-05-22T09:17:03","modified_gmt":"2025-05-22T01:17:03","slug":"%e5%a6%82%e4%bd%95%e8%ae%be%e8%ae%a1%e5%8f%af%e5%ae%9a%e5%88%b6%e7%9a%84-java-%e5%87%bd%e6%95%b0%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202774\/","title":{"rendered":"\u5982\u4f55\u8bbe\u8ba1\u53ef\u5b9a\u5236\u7684 Java \u51fd\u6570\uff1f"},"content":{"rendered":"

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

\u5982\u4f55\u8bbe\u8ba1\u53ef\u5b9a\u5236\u7684 Java \u51fd\u6570\uff1f<\/h1>\n

\u79ef\u7d2f\u77e5\u8bc6\uff0c\u80dc\u8fc7\u79ef\u84c4\u91d1\u94f6\uff01\u6bd5\u7adf\u5728\u6587\u7ae0\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u9047\u5230\u5404\u79cd\u5404\u6837\u7684\u95ee\u9898\uff0c\u5f80\u5f80\u90fd\u662f\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u6ca1\u6709\u638c\u63e1\u597d\u800c\u5bfc\u81f4\u7684\uff0c\u56e0\u6b64\u57fa\u7840\u77e5\u8bc6\u70b9\u7684\u79ef\u7d2f\u662f\u5f88\u91cd\u8981\u7684\u3002\u4e0b\u9762\u672c\u6587\u300a\u5982\u4f55\u8bbe\u8ba1\u53ef\u5b9a\u5236\u7684 Java \u51fd\u6570\uff1f\u300b\uff0c\u5c31\u5e26\u5927\u5bb6\u8bb2\u89e3\u4e00\u4e0b\u77e5\u8bc6\u70b9\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~<\/p>\n

Java \u4e2d\u8bbe\u8ba1\u53ef\u5b9a\u5236\u51fd\u6570\u7684\u6b65\u9aa4\uff1a\u786e\u5b9a\u5b9a\u5236\u70b9\uff08\u4ee3\u7801\u4e2d\u9700\u8981\u8c03\u6574\u884c\u4e3a\u7684\u90e8\u5206\uff09\u3002\u4f7f\u7528\u51fd\u6570\u5f0f\u63a5\u53e3\u5b9a\u4e49\u5b9a\u5236\u70b9\u7684\u884c\u4e3a\u548c\u7b7e\u540d\u3002\u5728\u51fd\u6570\u7b7e\u540d\u4e2d\u5f15\u5165\u5b9a\u5236\u53c2\u6570\uff0c\u4ee5\u5bb9\u7eb3\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\u3002<\/p>\n

<\/p>\n

\u5982\u4f55\u8bbe\u8ba1\u53ef\u5b9a\u5236\u7684 Java \u51fd\u6570<\/strong><\/p>\n

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

\u53ef\u5b9a\u5236\u7684\u51fd\u6570\u5141\u8bb8\u5f00\u53d1\u4eba\u5458\u52a8\u6001\u8c03\u6574\u5176\u884c\u4e3a\uff0c\u800c\u65e0\u9700\u4fee\u6539\u5e95\u5c42\u4ee3\u7801\u3002\u8fd9\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u7075\u6d3b\u6027\uff0c\u5e76\u4f7f\u4ee3\u7801\u66f4\u6613\u4e8e\u7ef4\u62a4\u548c\u6269\u5c55\u3002\u672c\u7bc7\u6587\u7ae0\u5c06\u63a2\u8ba8\u5982\u4f55\u5728 Java \u4e2d\u8bbe\u8ba1\u53ef\u5b9a\u5236\u7684\u51fd\u6570\u3002<\/p>\n

\u521b\u5efa\u5b9a\u5236\u70b9<\/strong><\/p>\n

\u7b2c\u4e00\u6b65\u662f\u786e\u5b9a\u4ee3\u7801\u4e2d\u9700\u8981\u5b9a\u5236\u7684\u70b9\u3002\u8fd9\u4e9b\u70b9\u88ab\u79f0\u4e3a\u201c\u5b9a\u5236\u70b9\u201d\u3002\u4e00\u4e2a\u5e38\u89c1\u7684\u5b9a\u5236\u70b9\u662f\u51fd\u6570\u4e2d\u7684\u7b97\u6cd5\u6216\u5b9e\u73b0\u7684\u7279\u5b9a\u90e8\u5206\u3002<\/p>\n

\u4f8b\u5982\uff0c\u8ba9\u6211\u4eec\u8003\u8651\u4e00\u4e2a\u8ba1\u7b97\u5b57\u7b26\u4e32\u4e2d\u5143\u97f3\u6570\u91cf\u7684\u51fd\u6570\uff1a<\/p>\n

public static int countVowels(String str) {\n    int count = 0;\n    for (char c : str.toCharArray()) {\n        if (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u') {\n            count++;\n        }\n    }\n    return count;\n}<\/pre>\n
\u5bf9\u4e8e\u6b64\u51fd\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u521b\u5efa\u4e00\u4e2a\u201c\u7b97\u6cd5\u5b9a\u5236\u70b9\u201d\u6765\u4f7f\u5176\u53ef\u5b9a\u5236\uff0c\u8be5\u5b9a\u5236\u70b9\u5141\u8bb8\u7528\u6237\u63d0\u4f9b\u81ea\u5df1\u7684\u7b97\u6cd5\u6765\u8ba1\u7b97\u5143\u97f3\u7684\u6570\u91cf\u3002<\/p>\n
\u4f7f\u7528\u51fd\u6570\u5f0f\u63a5\u53e3<\/strong><\/p>\n
\u51fd\u6570\u5f0f\u63a5\u53e3\u5728\u5b9a\u4e49\u5b9a\u5236\u70b9\u65f6\u975e\u5e38\u6709\u7528\u3002\u5b83\u4eec\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5951\u7ea6\uff0c\u6307\u5b9a\u4f20\u9012\u7ed9\u5b9a\u5236\u70b9\u7684\u51fd\u6570\u7684\u7b7e\u540d\u548c\u884c\u4e3a\u3002\u5bf9\u4e8e\u6211\u4eec\u7684\u793a\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a VowelCounter<\/code> \u7684\u51fd\u6570\u5f0f\u63a5\u53e3\uff1a<\/p>\n
@FunctionalInterface\npublic interface VowelCounter {\n    int countVowels(String str);\n}<\/pre>\n
\u5f15\u5165\u5b9a\u5236\u53c2\u6570<\/strong><\/p>\n
\u4e0b\u4e00\u6b65\u662f\u5728\u51fd\u6570\u7b7e\u540d\u4e2d\u5f15\u5165\u4e00\u4e2a\u5b9a\u5236\u53c2\u6570\u3002\u6b64\u53c2\u6570\u5c06\u5bb9\u7eb3\u5177\u6709\u6240\u9700\u7b7e\u540d\u7684\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570\u3002\u5bf9\u4e8e\u6211\u4eec\u7684\u793a\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06 VowelCounter<\/code> \u51fd\u6570\u5f0f\u63a5\u53e3\u4f5c\u4e3a\u5b9a\u5236\u53c2\u6570\uff1a<\/p>\n
public static int countVowels(String str, VowelCounter vowelCounter) {\n    return vowelCounter.countVowels(str);\n}<\/pre>\n
\u5b9e\u7528\u6848\u4f8b\uff1a\u81ea\u5b9a\u4e49\u5143\u97f3\u8ba1\u6570\u7b97\u6cd5<\/strong><\/p>\n
\u73b0\u5728\uff0c\u6211\u4eec\u5df2\u7ecf\u4f7f\u51fd\u6570\u53ef\u5b9a\u5236\uff0c\u8ba9\u6211\u4eec\u770b\u770b\u5982\u4f55\u4f7f\u7528\u5b83\u6765\u81ea\u5b9a\u4e49\u5143\u97f3\u8ba1\u6570\u7b97\u6cd5\u3002\u5047\u8bbe\u6211\u4eec\u60f3\u8981\u521b\u5efa\u4e00\u4e2a\u53ea\u8ba1\u7b97\u5927\u5199\u5143\u97f3\u7684\u7b97\u6cd5\u3002\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5b9e\u73b0 VowelCounter<\/code> \u51fd\u6570\u5f0f\u63a5\u53e3\u7684\u65b0\u51fd\u6570\uff1a<\/p>\n
public static class UppercaseVowelCounter implements VowelCounter {\n    @Override\n    public int countVowels(String str) {\n        int count = 0;\n        for (char c : str.toCharArray()) {\n            if (c == 'A' || c == 'E' || c == 'I' || c == 'O' || c == 'U') {\n                count++;\n            }\n        }\n        return count;\n    }\n}<\/pre>\n
\u901a\u8fc7\u5c06 UppercaseVowelCounter<\/code> \u5b9e\u4f8b\u4f20\u9012\u7ed9 countVowels<\/code> \u51fd\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u53ea\u8ba1\u7b97\u5b57\u7b26\u4e32\u4e2d\u7684\u5927\u5199\u5143\u97f3\uff1a<\/p>\n
String str = \"Hello, World!\";\nint vowelCount = countVowels(str, new UppercaseVowelCounter());\nSystem.out.println(vowelCount); \/\/ \u8f93\u51fa\uff1a2<\/pre>\n
\u4f18\u52bf<\/strong><\/p>\n
\u53ef\u5b9a\u5236\u7684\u51fd\u6570\u63d0\u4f9b\u4e86\u4ee5\u4e0b\u4f18\u52bf\uff1a<\/p>\n
    \n
  • \u63d0\u9ad8\u4ee3\u7801\u7075\u6d3b\u6027<\/li>\n
  • \u964d\u4f4e\u7ef4\u62a4\u6210\u672c<\/li>\n
  • \u589e\u5f3a\u53ef\u6269\u5c55\u6027<\/li>\n
  • \u4fc3\u8fdb\u4ee3\u7801\u91cd\u7528<\/li>\n<\/ul>\n
    \u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300a\u5982\u4f55\u8bbe\u8ba1\u53ef\u5b9a\u5236\u7684 Java \u51fd\u6570\uff1f\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u516c\u4f17\u53f7\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u5982\u4f55\u8bbe\u8ba1\u53ef\u5b9a\u5236\u7684 Java \u51fd\u6570...<\/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-202774","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202774","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=202774"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202774\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202774"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202774"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202774"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}