{"id":7427,"date":"2021-03-22T12:47:12","date_gmt":"2021-03-22T12:47:12","guid":{"rendered":"https:\/\/prwatech.in\/blog\/?p=7427"},"modified":"2024-04-15T07:15:57","modified_gmt":"2024-04-15T07:15:57","slug":"variables-operators-in-golang","status":"publish","type":"post","link":"https:\/\/prwatech.in\/blog\/go-lang\/variables-operators-in-golang\/","title":{"rendered":"Variables &#038; Operators in Golang"},"content":{"rendered":"\r\n<h2><span data-sheets-root=\"1\" data-sheets-value=\"{&quot;1&quot;:2,&quot;2&quot;:&quot;Variables &amp; Operators in Golang&quot;}\" data-sheets-userformat=\"{&quot;2&quot;:513,&quot;3&quot;:{&quot;1&quot;:0},&quot;12&quot;:0}\">Variables &amp; Operators in Golang<\/span><\/h2>\r\n<p>&nbsp;<\/p>\r\n<p>In Golang (or Go), variables are used to store and manipulate data within programs. They are defined using the `var` keyword followed by the variable name and type. For example, `var age int` declares a variable named `age` of type `int`. Golang supports various data types including integers (`int`, `int8`, `int16`, `int32`, `int64`), floating-point numbers (`float32`, `float64`), strings (`string`), booleans (`bool`), and more.<\/p>\r\n<p>Operators in Golang are symbols or keywords used to perform operations on variables and values. Golang supports arithmetic operators (`+`, `-`, `*`, `\/`, `%`), comparison operators (`==`, `!=`, `&lt;`, `&lt;=`, `&gt;`, `&gt;=`), logical operators (`&amp;&amp;`, `||`, `!`), assignment operators (`=`, `+=`, `-=`, `*=`, `\/=`), and more. For example, `a + b` performs addition, `x &gt; y` checks if `x` is greater than `y`, and `!flag` negates the value of `flag`.<\/p>\r\n<p>Golang also provides special operators like `&amp;` (address operator), `*` (pointer dereference operator), `++` and `&#8211;` (increment and decrement operators), and `:=` (short variable declaration). Understanding variables and operators is essential for writing efficient and concise Golang code, enabling developers to manipulate data and perform computations effectively within their programs.<\/p>\r\n<h4><strong>Prerequisites<\/strong><\/h4>\r\n\r\n\r\n\r\n<p>Hardware : Local <a href=\"https:\/\/go.dev\/\">Machine<\/a><\/p>\r\n\r\n\r\n\r\n<p>Software : <a href=\"https:\/\/prwatech.in\/blog\/software-installation\/installation-of-visual-studio-code-windows\/\" target=\"_blank\" rel=\"noreferrer noopener\" data-type=\"URL\" data-id=\"https:\/\/prwatech.in\/blog\/software-installation\/installation-of-visual-studio-code-windows\/\">VS Code<\/a>, Golang<\/p>\r\n\r\n\r\n\r\n<p><strong>Variable Declaration<\/strong><\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"559\" height=\"246\" class=\"wp-image-7428\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/1-25.jpg\" alt=\"\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/1-25.jpg 559w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/1-25-300x132.jpg 300w\" sizes=\"auto, (max-width: 559px) 100vw, 559px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Output :<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7429\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/1output.jpg\" alt=\"\" width=\"387\" height=\"89\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/1output.jpg 361w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/1output-300x69.jpg 300w\" sizes=\"auto, (max-width: 387px) 100vw, 387px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Variable declaration with <strong>var<\/strong> keyword.<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"585\" height=\"240\" class=\"wp-image-7430\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/2-26.jpg\" alt=\"\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/2-26.jpg 585w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/2-26-300x123.jpg 300w\" sizes=\"auto, (max-width: 585px) 100vw, 585px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Output :<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"340\" height=\"62\" class=\"wp-image-7431\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/2output.jpg\" alt=\"\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/2output.jpg 340w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/2output-300x55.jpg 300w\" sizes=\"auto, (max-width: 340px) 100vw, 340px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Mixed variable declare<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7434\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/4-22.jpg\" alt=\"\" width=\"566\" height=\"293\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/4-22.jpg 545w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/4-22-300x155.jpg 300w\" sizes=\"auto, (max-width: 566px) 100vw, 566px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Output :<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7435\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/4output.jpg\" alt=\"\" width=\"499\" height=\"116\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/4output.jpg 357w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/4output-300x70.jpg 300w\" sizes=\"auto, (max-width: 499px) 100vw, 499px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Scope of variable<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7446\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/11-12.jpg\" alt=\"\" width=\"393\" height=\"326\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/11-12.jpg 371w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/11-12-300x249.jpg 300w\" sizes=\"auto, (max-width: 393px) 100vw, 393px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Output :<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7447\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/11out.jpg\" alt=\"\" width=\"539\" height=\"80\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/11out.jpg 404w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/11out-300x45.jpg 300w\" sizes=\"auto, (max-width: 539px) 100vw, 539px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>String declaration<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"511\" height=\"398\" class=\"wp-image-7448\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/12-12.jpg\" alt=\"\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/12-12.jpg 511w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/12-12-300x234.jpg 300w\" sizes=\"auto, (max-width: 511px) 100vw, 511px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Output :<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7449\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/12out.jpg\" alt=\"\" width=\"417\" height=\"183\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/12out.jpg 381w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/12out-300x131.jpg 300w\" sizes=\"auto, (max-width: 417px) 100vw, 417px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p><strong>Operators<\/strong><\/p>\r\n\r\n\r\n\r\n<p>Using<strong> *<\/strong> operator [Multiply]<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7432\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/3-20.jpg\" alt=\"\" width=\"511\" height=\"304\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/3-20.jpg 501w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/3-20-300x178.jpg 300w\" sizes=\"auto, (max-width: 511px) 100vw, 511px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Output :<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7433\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/3output.jpg\" alt=\"\" width=\"473\" height=\"57\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/3output.jpg 341w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/3output-300x36.jpg 300w\" sizes=\"auto, (max-width: 473px) 100vw, 473px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Logical AND operator [&amp;&amp;]<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"609\" height=\"433\" class=\"wp-image-7451\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/6-19-edited.jpg\" alt=\"\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/6-19-edited.jpg 609w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/6-19-edited-300x213.jpg 300w\" sizes=\"auto, (max-width: 609px) 100vw, 609px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Output :<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7437\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/6output.jpg\" alt=\"\" width=\"442\" height=\"119\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/6output.jpg 379w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/6output-300x81.jpg 300w\" sizes=\"auto, (max-width: 442px) 100vw, 442px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Increment [++] and decrement [- -] operator<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"693\" height=\"338\" class=\"wp-image-7438\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/7-20.jpg\" alt=\"\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/7-20.jpg 693w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/7-20-300x146.jpg 300w\" sizes=\"auto, (max-width: 693px) 100vw, 693px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Output :<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7439\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/7out.jpg\" alt=\"\" width=\"422\" height=\"104\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/7out.jpg 324w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/7out-300x74.jpg 300w\" sizes=\"auto, (max-width: 422px) 100vw, 422px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Logical operators<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7440\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/8-22.jpg\" alt=\"\" width=\"454\" height=\"331\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/8-22.jpg 424w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/8-22-300x219.jpg 300w\" sizes=\"auto, (max-width: 454px) 100vw, 454px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Output :<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7441\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/8output.jpg\" alt=\"\" width=\"478\" height=\"150\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/8output.jpg 391w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/8output-300x94.jpg 300w\" sizes=\"auto, (max-width: 478px) 100vw, 478px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Shift operator<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7442\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/9-20.jpg\" alt=\"\" width=\"496\" height=\"369\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/9-20.jpg 479w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/9-20-300x223.jpg 300w\" sizes=\"auto, (max-width: 496px) 100vw, 496px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Output :<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"372\" height=\"91\" class=\"wp-image-7443\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/9out.jpg\" alt=\"\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/9out.jpg 372w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/9out-300x73.jpg 300w\" sizes=\"auto, (max-width: 372px) 100vw, 372px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Bitwise Operators<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"550\" height=\"500\" class=\"wp-image-7444\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/10-12.jpg\" alt=\"\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/10-12.jpg 550w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/10-12-300x273.jpg 300w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>Output :<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7445\" src=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/10out.jpg\" alt=\"\" width=\"509\" height=\"144\" srcset=\"https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/10out.jpg 375w, https:\/\/prwatech.in\/blog\/wp-content\/uploads\/2021\/03\/10out-300x85.jpg 300w\" sizes=\"auto, (max-width: 509px) 100vw, 509px\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>Variables &amp; Operators in Golang &nbsp; In Golang (or Go), variables are used to store and manipulate data within programs. They are defined using the `var` keyword followed by the variable name and type. For example, `var age int` declares a variable named `age` of type `int`. Golang supports various data types including integers (`int`, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[666,1707],"tags":[668,812,808,815,813,669,814,674,673],"class_list":["post-7427","post","type-post","status-publish","format-standard","hentry","category-go-lang","category-golang-modules","tag-go","tag-go-lang-tutorial","tag-go-language","tag-go-language-ide","tag-go-language-tutorial","tag-golang","tag-golang-ide","tag-operators-in-golang","tag-variables-in-golang"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Variables &amp; Operators in Golang - Prwatech<\/title>\n<meta name=\"description\" content=\"Master Variables &amp; Operators in Golang - Dive deep with our expert instructors and comprehensive curriculum.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Variables &amp; 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