{"id":6810,"date":"2024-03-14T04:42:14","date_gmt":"2024-03-14T04:42:14","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-can-java-determine-if-a-string-starts-with-a-specified-prefix\/"},"modified":"2025-08-02T08:27:05","modified_gmt":"2025-08-02T08:27:05","slug":"how-can-java-determine-if-a-string-starts-with-a-specified-prefix","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-can-java-determine-if-a-string-starts-with-a-specified-prefix\/","title":{"rendered":"Java startsWith: Check String Prefix"},"content":{"rendered":"<p>In Java, you can use the startsWith() method to check if a string starts with a specified prefix. This method takes a string parameter as the prefix, and returns true if the string starts with the specified prefix, otherwise it returns false. Here is an example code snippet:<\/p>\n<pre class=\"post-pre\"><code>String str = \"Hello World\";\r\n\r\n\/\/ \u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u4ee5\u6307\u5b9a\u524d\u7f00\"Hello\"\u5f00\u5934\r\nif(str.startsWith(\"Hello\")) {\r\n    System.out.println(\"\u5b57\u7b26\u4e32\u4ee5\u6307\u5b9a\u524d\u7f00\u5f00\u5934\");\r\n} else {\r\n    System.out.println(\"\u5b57\u7b26\u4e32\u4e0d\u4ee5\u6307\u5b9a\u524d\u7f00\u5f00\u5934\");\r\n}\r\n<\/code><\/pre>\n<p>When running the above code, the output will be:<\/p>\n<pre class=\"post-pre\"><code>\u5b57\u7b26\u4e32\u4ee5\u6307\u5b9a\u524d\u7f00\u5f00\u5934\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>In Java, you can use the startsWith() method to check if a string starts with a specified prefix. This method takes a string parameter as the prefix, and returns true if the string starts with the specified prefix, otherwise it returns false. Here is an example code snippet: String str = &#8220;Hello World&#8221;; \/\/ \u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u4ee5\u6307\u5b9a\u524d\u7f00&#8221;Hello&#8221;\u5f00\u5934 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[8461,180,8458,8460,8459],"class_list":["post-6810","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-check-prefix-java","tag-java-programming","tag-java-startswith","tag-java-string-methods","tag-string-prefix-java"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Java startsWith: Check String Prefix - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to use Java&#039;s startsWith() method to check string prefixes with examples and best practices.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/how-can-java-determine-if-a-string-starts-with-a-specified-prefix\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java startsWith: Check String Prefix\" \/>\n<meta property=\"og:description\" content=\"Learn how to use Java&#039;s startsWith() method to check string prefixes with examples and best practices.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-can-java-determine-if-a-string-starts-with-a-specified-prefix\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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