{"id":36575,"date":"2024-11-26T11:54:16","date_gmt":"2024-11-26T03:54:16","guid":{"rendered":"https:\/\/fwq.ai\/blog\/36575\/"},"modified":"2024-11-26T11:54:16","modified_gmt":"2024-11-26T03:54:16","slug":"java%e7%bb%9f%e8%ae%a1%e6%9c%89%e5%93%aa%e4%ba%9b%e5%ad%97%e6%af%8d%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/36575\/","title":{"rendered":"java\u7edf\u8ba1\u6709\u54ea\u4e9b\u5b57\u6bcd\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\uff0c\u7edf\u8ba1\u5b57\u7b26\u4e32\u4e2d\u5b57\u6bcd\u6570\u7ec4\u7684\u4e2a\u6570\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 string \u7c7b\u65b9\u6cd5 character.isletter() \u904d\u5386\u5b57\u7b26\u4e32\u5e76\u8ba1\u7b97\u5b57\u6bcd\u4e2a\u6570\u3002\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f p{alpha} \u5339\u914d\u5b57\u6bcd\u6570\u7ec4\u5e76\u8ba1\u6570\u5339\u914d\u6b21\u6570\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/12\/2024111210281054059.jpg\" class=\"aligncenter\" title=\"java\u7edf\u8ba1\u6709\u54ea\u4e9b\u5b57\u6bcd\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u7edf\u8ba1\u6709\u54ea\u4e9b\u5b57\u6bcd\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u7edf\u8ba1\u5b57\u7b26\u4e32\u4e2d\u7684\u5b57\u6bcd\u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 String \u7c7b\u7684\u65b9\u6cd5\u548c\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u7edf\u8ba1\u5b57\u7b26\u4e32\u4e2d\u5b57\u6bcd\u6570\u7ec4\u7684\u4e2a\u6570\u3002<\/p>\n<p><strong>\u4f7f\u7528 String \u7c7b\u65b9\u6cd5<\/strong><\/p>\n<p>String \u7c7b\u63d0\u4f9b\u4e86Character.isLetter() \u65b9\u6cd5\uff0c\u53ef\u4ee5\u5224\u65ad\u4e00\u4e2a\u5b57\u7b26\u662f\u5426\u4e3a\u5b57\u6bcd\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6b64\u65b9\u6cd5\u904d\u5386\u5b57\u7b26\u4e32\uff0c\u5e76\u8ba1\u7b97\u5b57\u6bcd\u7684\u4e2a\u6570\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>public static int countLetterArrays(String str) {\n    int count = 0;\n    for (char c : str.toCharArray()) {\n        if (Character.isLetter(c)) {\n            count++;\n        }\n    }\n    return count;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f<\/strong><\/p>\n<p>\u6b63\u5219\u8868\u8fbe\u5f0f\u63d0\u4f9b\u4e86\u4e00\u79cd\u66f4\u7b80\u6d01\u7684\u65b9\u5f0f\u6765\u5339\u914d\u5b57\u6bcd\u6570\u7ec4\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\\p{Alpha}\u6a21\u5f0f\u6765\u5339\u914d\u4efb\u4f55\u5b57\u6bcd\u5b57\u7b26\u3002<\/p>\n<pre>public static int countLetterArrays(String str) {\n    Pattern pattern = Pattern.compile(\"\\p{Alpha}\");\n    Matcher matcher = pattern.matcher(str);\n    int count = 0;\n    while (matcher.find()) {\n        count++;\n    }\n    return count;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u7edf\u8ba1\u6709\u54ea\u4e9b\u5b57\u6bcd\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":"<p>\u5728 java \u4e2d\uff0c\u7edf\u8ba1\u5b57\u7b26\u4e32\u4e2d\u5b57\u6bcd\u6570\u7ec4\u7684\u4e2a\u6570\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 string \u7c7b\u65b9\u6cd5 character.isletter() \u904d\u5386\u5b57\u7b26\u4e32\u5e76\u8ba1\u7b97\u5b57\u6bcd\u4e2a\u6570\u3002\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f p{alpha} \u5339\u914d\u5b57\u6bcd\u6570\u7ec4\u5e76\u8ba1\u6570\u5339\u914d\u6b21\u6570\u3002 Java \u7edf\u8ba1\u5b57\u7b26\u4e32\u4e2d\u7684\u5b57\u6bcd\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 String \u7c7b\u7684\u65b9\u6cd5\u548c\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u7edf\u8ba1\u5b57\u7b26\u4e32\u4e2d\u5b57\u6bcd\u6570\u7ec4\u7684\u4e2a\u6570\u3002 \u4f7f\u7528 String \u7c7b\u65b9\u6cd5 String \u7c7b\u63d0\u4f9b\u4e86Character.isLetter() \u65b9\u6cd5\uff0c\u53ef\u4ee5\u5224\u65ad\u4e00\u4e2a\u5b57\u7b26\u662f\u5426\u4e3a\u5b57\u6bcd\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6b64\u65b9\u6cd5\u904d\u5386\u5b57\u7b26\u4e32\uff0c\u5e76\u8ba1\u7b97\u5b57\u6bcd\u7684\u4e2a\u6570\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b public static int countLetterArrays(String str) { int count = 0; for (char c : str.toCharArray()) { if (Character.isLetter(c)) { count++; } } return count; } \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f \u6b63\u5219\u8868\u8fbe\u5f0f\u63d0\u4f9b\u4e86\u4e00\u79cd\u66f4\u7b80\u6d01\u7684\u65b9\u5f0f\u6765\u5339\u914d\u5b57\u6bcd\u6570\u7ec4\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\\p{Alpha}\u6a21\u5f0f\u6765\u5339\u914d\u4efb\u4f55\u5b57\u6bcd\u5b57\u7b26\u3002 public static int countLetterArrays(String [&hellip;]<\/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-36575","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36575","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=36575"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36575\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=36575"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=36575"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=36575"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}