{"id":7461,"date":"2022-10-27T12:04:20","date_gmt":"2022-10-27T06:34:20","guid":{"rendered":"https:\/\/www.innovationm.com\/blog\/?p=7461"},"modified":"2022-10-27T12:04:31","modified_gmt":"2022-10-27T06:34:31","slug":"kotlin-variable","status":"publish","type":"post","link":"https:\/\/www.innovationm.com\/blog\/kotlin-variable\/","title":{"rendered":"Kotlin Variable"},"content":{"rendered":"

Kotlin Variables are containers for storing data values. The data of variables can be changed and reused depending on conditions.<\/p>\n

To create a variable we can use var or val, and assign a value to it with an equal sign (=)<\/p>\n

Variable Declarations<\/strong><\/p>\n

Kotlin uses two keywords to declare variables val and var.<\/p>\n

Example :<\/u><\/p>\n

Var subject = \u201ckotlin\u201d\r\n\r\nVal salary = 21500<\/pre>\n
 <\/p>\n
Here the variable subject is a string type and the variable salary is an int type. so we don\u2019t need to specify the type of variable explicitly. Kotlin compilers know this by initializer\u00a0 Expression.<\/p>\n
We can also explicitly specify the type of variable<\/p>\n
Example :<\/u><\/p>\n
Var subject: String = \u201cKotlin\u201d\r\n\r\nVal salary:\u00a0 Int = 21500<\/pre>\n
You can also declare a variable without assigning the value, and give the value later. and this is only possible when you specify the type.<\/p>\n
Example :<\/u><\/p>\n
var subject: String\r\n\r\nsubject = \u201cKotlin\u201d\r\n\r\nprintln(subject)<\/pre>\n
 <\/p>\n
Difference Between val and var<\/u><\/strong><\/p>\n
val (Immutable variable):- \u00a0We can not change the value of variables declared using val keyword.<\/pre>\n
 <\/p>\n
Example :<\/u><\/p>\n
val subject =\u201dkotlin\u201d\r\n\r\n\u00a0subject \u201cjava\u201d\u00a0 error<\/pre>\n
va<\/strong>r <\/strong>(mutable variables):- <\/strong>\u00a0we can change the value of variables declared using the var keyword.<\/p>\n
Example :<\/u><\/p>\n
var\u00a0 salary = 21500\r\n\r\nsalary =\u00a0 31500\u00a0 execute<\/pre>\n","protected":false},"excerpt":{"rendered":"
Kotlin Variables are containers for storing data values. The data of variables can be changed and reused depending on conditions. To create a variable we can use var or val, and assign a value to it with an equal sign (=) Variable Declarations Kotlin uses two keywords to declare variables val and var. Example : […]<\/p>\n","protected":false},"author":1,"featured_media":7462,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[256,360],"tags":[722,814,817,816,815],"class_list":["post-7461","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java-application","category-javascript","tag-blog","tag-kotlin","tag-val","tag-var","tag-variable"],"yoast_head":"\nKotlin Variable - InnovationM - Blog<\/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:\/\/www.innovationm.com\/blog\/kotlin-variable\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kotlin Variable - InnovationM - Blog\" \/>\n<meta property=\"og:description\" content=\"Kotlin Variables are containers for storing data values. The data of variables can be changed and reused depending on conditions. To create a variable we can use var or val, and assign a value to it with an equal sign (=) Variable Declarations Kotlin uses two keywords to declare variables val and var. 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