{"id":7266,"date":"2024-03-14T05:18:26","date_gmt":"2024-03-14T05:18:26","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/what-is-the-method-in-java-for-determining-whether-a-string-contains-another-string\/"},"modified":"2025-08-02T14:01:40","modified_gmt":"2025-08-02T14:01:40","slug":"what-is-the-method-in-java-for-determining-whether-a-string-contains-another-string","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/what-is-the-method-in-java-for-determining-whether-a-string-contains-another-string\/","title":{"rendered":"Java String contains() Method Explained"},"content":{"rendered":"<p>In Java, you can determine if a string contains a certain substring by using the contains() method from the String class. This method will return a boolean value indicating whether the string includes the specified substring.<\/p>\n<p>For example:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">str<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"Hello, World!\"<\/span>;\r\n<span class=\"hljs-type\">boolean<\/span> <span class=\"hljs-variable\">containsHello<\/span> <span class=\"hljs-operator\">=<\/span> str.contains(<span class=\"hljs-string\">\"Hello\"<\/span>); <span class=\"hljs-comment\">\/\/ \u5224\u65adstr\u4e2d\u662f\u5426\u5305\u542b\"Hello\"\u5b50\u5b57\u7b26\u4e32<\/span>\r\n<span class=\"hljs-keyword\">if<\/span>(containsHello) {\r\n    System.out.println(<span class=\"hljs-string\">\"\u5305\u542bHello\"<\/span>);\r\n} <span class=\"hljs-keyword\">else<\/span> {\r\n    System.out.println(<span class=\"hljs-string\">\"\u4e0d\u5305\u542bHello\"<\/span>);\r\n}\r\n<\/code><\/pre>\n<p>In the above code, the variable containsHello will store the result of whether the string contains &#8220;Hello&#8221;. If it does, it will output &#8220;Contains Hello&#8221;; otherwise, it will output &#8220;Does not contain Hello&#8221;.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Java, you can determine if a string contains a certain substring by using the contains() method from the String class. This method will return a boolean value indicating whether the string includes the specified substring. For example: String str = &#8220;Hello, World!&#8221;; boolean containsHello = str.contains(&#8220;Hello&#8221;); \/\/ \u5224\u65adstr\u4e2d\u662f\u5426\u5305\u542b&#8221;Hello&#8221;\u5b50\u5b57\u7b26\u4e32 if(containsHello) { System.out.println(&#8220;\u5305\u542bHello&#8221;); } else { [&hellip;]<\/p>\n","protected":false},"author":10,"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":[9268,87,299,8422,275],"class_list":["post-7266","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-contains","tag-java","tag-programming","tag-string","tag-substring"],"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 String contains() Method Explained - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to use Java&#039;s contains() method to check if a string contains a substring. Simple code example included.\" \/>\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\/what-is-the-method-in-java-for-determining-whether-a-string-contains-another-string\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java String contains() Method Explained\" \/>\n<meta property=\"og:description\" content=\"Learn how to use Java&#039;s contains() method to check if a string contains a substring. 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