{"id":33078,"date":"2023-02-04T06:56:17","date_gmt":"2023-02-04T01:26:17","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-what-is-the-difference-between-nullabe-and-non-nullable-type-in-kotlin\/"},"modified":"2023-02-04T06:56:17","modified_gmt":"2023-02-04T01:26:17","slug":"solved-what-is-the-difference-between-nullabe-and-non-nullable-type-in-kotlin","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-what-is-the-difference-between-nullabe-and-non-nullable-type-in-kotlin\/","title":{"rendered":"[Solved] What is the difference between nullabe and non-nullable type in Kotlin"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-54512060\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"54512060\" data-parentid=\"54511331\" data-score=\"1\" 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><strong>Nullable<\/strong> types can hold <strong>nulls<\/strong>. When type is nullable the question mark is set after it&#8217;s type:<\/p>\n<pre><code>val str: String? = null\n<\/code><\/pre>\n<p><strong>Non-nullable<\/strong> types can&#8217;t hold <strong>nulls<\/strong>:<\/p>\n<pre><code>val str: String = \"some value\"\n<\/code><\/pre>\n<p>If we try to set <strong>null<\/strong> value to <strong>Non-nullable<\/strong> type, IDE will give an error and code will not be compiled:<\/p>\n<pre><code>val str: String = null \/\/ error, the code won't compile\n<\/code><\/pre>\n<p><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/kotlinlang.org\/docs\/reference\/null-safety.html\">Here you can read more about <strong>Null Safety<\/strong>.<\/a><\/p>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\"><\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved What is the difference between nullabe and non-nullable type in Kotlin <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] Nullable types can hold nulls. When type is nullable the question mark is set after it&#8217;s type: val str: String? = null Non-nullable types can&#8217;t hold nulls: val str: String = &#8220;some value&#8221; If we try to set null value to Non-nullable type, IDE will give an error and code will not be compiled: &#8230; <a title=\"[Solved] What is the difference between nullabe and non-nullable type in Kotlin\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-what-is-the-difference-between-nullabe-and-non-nullable-type-in-kotlin\/\" aria-label=\"More on [Solved] What is the difference between nullabe and non-nullable type in Kotlin\">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":[600,5951,354,4213],"class_list":["post-33078","post","type-post","status-publish","format-standard","hentry","category-solved","tag-kotlin","tag-kotlin-null-safety","tag-null","tag-nullable"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] What is the difference between nullabe and non-nullable type in Kotlin - 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-what-is-the-difference-between-nullabe-and-non-nullable-type-in-kotlin\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] What is the difference between nullabe and non-nullable type in Kotlin - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] Nullable types can hold nulls. When type is nullable the question mark is set after it&#8217;s type: val str: String? = null Non-nullable types can&#8217;t hold nulls: val str: String = &quot;some value&quot; If we try to set null value to Non-nullable type, IDE will give an error and code will not be compiled: ... 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