{"id":29046,"date":"2023-01-05T03:23:47","date_gmt":"2023-01-04T21:53:47","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-add-a-string-to-an-arraylist\/"},"modified":"2023-01-05T03:23:47","modified_gmt":"2023-01-04T21:53:47","slug":"solved-add-a-string-to-an-arraylist","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-add-a-string-to-an-arraylist\/","title":{"rendered":"[Solved] Add a string to an ArrayList"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-18186729\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"18186729\" data-parentid=\"18186681\" data-score=\"3\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>If you are declaring list as<\/p>\n<pre><code> ArrayList data = new ArrayList();\n<\/code><\/pre>\n<p>then you get the message about parameterizing the list because data can hold any <code>Object<\/code><\/p>\n<p>If you know that you are going to add only strings in your list, declare it as<\/p>\n<pre><code> ArrayList&lt;String&gt; data = new ArrayList&lt;String&gt;(); \/\/ pre java 7\n ArrayList&lt;String&gt; data = new ArrayList&lt;&gt;(); \/\/ valid for java 7\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">1<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved Add a string to an ArrayList <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] If you are declaring list as ArrayList data = new ArrayList(); then you get the message about parameterizing the list because data can hold any Object If you know that you are going to add only strings in your list, declare it as ArrayList&lt;String&gt; data = new ArrayList&lt;String&gt;(); \/\/ pre java 7 ArrayList&lt;String&gt; data &#8230; <a title=\"[Solved] Add a string to an ArrayList\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-add-a-string-to-an-arraylist\/\" aria-label=\"More on [Solved] Add a string to an ArrayList\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[479,323,362],"class_list":["post-29046","post","type-post","status-publish","format-standard","hentry","category-solved","tag-arraylist","tag-java","tag-string"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] Add a string to an ArrayList - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-add-a-string-to-an-arraylist\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Add a string to an ArrayList - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] If you are declaring list as ArrayList data = new ArrayList(); then you get the message about parameterizing the list because data can hold any Object If you know that you are going to add only strings in your list, declare it as ArrayList&lt;String&gt; data = new ArrayList&lt;String&gt;(); \/\/ pre java 7 ArrayList&lt;String&gt; data ... 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