{"id":9761,"date":"2022-08-02T12:54:10","date_gmt":"2022-08-02T12:54:10","guid":{"rendered":"https:\/\/prwatech.in\/blog\/?p=9761"},"modified":"2024-04-15T08:37:06","modified_gmt":"2024-04-15T08:37:06","slug":"introduction-2","status":"publish","type":"post","link":"https:\/\/prwatech.in\/blog\/go-lang\/introduction-2\/","title":{"rendered":"Introduction :"},"content":{"rendered":"

INTRODUCTION Definition & Usage Examples<\/span><\/h2>\n

An introduction to a programming topic typically provides foundational information about the concept, its usage, and its relevance in software development. In this context, the introduction to “Definition & Usage Examples” would focus on clarifying what these terms mean in the realm of programming and how they contribute to understanding and applying programming concepts.<\/p>\n

“Definition” refers to the explicit explanation or specification of a concept or term within the context of programming. It involves clearly defining the purpose, behavior, and characteristics of a programming construct, method, or pattern.<\/p>\n

“Usage Examples” refer to practical demonstrations or instances showcasing how a programming concept is applied in real-world scenarios. These examples help illustrate the concept’s functionality, demonstrate its benefits, and provide insights into how it can be leveraged effectively in programming tasks.<\/p>\n

    \n
  1. Go Language is a cross-platform, open-source programming<\/a> language<\/a> use for general purposes.<\/li>\n
  2. Go is fast, statically typed, compiled language that feels like a dynamic typed, interpreted language.<\/li>\n
  3. Go syntax is similar to C++.<\/li>\n<\/ol>\n

    Uses of Go <\/u><\/strong><\/h2>\n
      \n
    1. Web Development.<\/li>\n
    2. Developing network-based programs.<\/li>\n
    3. Developing cross-platform enterprise application<\/li>\n
    4. Cloud-native development.<\/li>\n<\/ol>\n

       <\/p>\n

      Ex : Hello World Program<\/strong><\/p>\n

      \/\/ First.go\r\npackage main\r\nimport \"fmt\"\r\nfunc main() {\r\n    fmt.Println(\"Hello Prwatech.\")\r\n}\r\n<\/pre>\n
      Output :<\/p>\n
      PS C:\\GO_Language\\String> go run First.go\r\nHello Prwatech\r\n<\/pre>\n
       <\/p>\n
       <\/p>\n
      Go Syntax:<\/u><\/strong><\/p>\n
        \n
      1. Package declaration<\/li>\n
      2. Import package<\/li>\n
      3. Statements and expressions<\/li>\n<\/ol>\n
        package main         \t\t\t\t\/\/Package declaration\r\nimport \"fmt\"\t\t\t\t\t\/\/Import Package \r\nfunc main() {\r\n    fmt.Println(\"This is  Prwatech Institute of Data Science\")\t\/\/Statement and expressions\r\n}\r\n<\/pre>\n
         <\/p>\n
         <\/p>\n
         <\/p>\n
          \n
        • \n
            \n
          • \n
            Strings in Golang:<\/strong><\/strong><\/h2>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
              \n
            1. In this program we have to write a string in a sentence then print the sentence and data type.<\/li>\n<\/ol>\n
              \/\/str.go\r\npackage main\r\nimport (\r\n    \"fmt\"\r\n    \"reflect\"\r\n)\r\nfunc main() {\r\n    var s string = \"Hello, this is the first Go language program.\"\r\n    fmt.Println(s)\r\n    fmt.Println(reflect.TypeOf(s))\r\n}\r\n<\/pre>\n
               <\/p>\n
              Output :<\/p>\n
              PS C:\\GO_Language\\String> go run str.go\r\nHello, this is the first Go language program\r\nstring\r\n<\/pre>\n
               <\/p>\n
               <\/p>\n
              2) Go program to illustrate how to check the given string start with the specified prefix<\/p>\n
              \/\/str2.go\r\npackage main\r\n\r\nimport (\r\n    \"fmt\"\r\n    \"strings\"\r\n)\r\n\r\nfunc main() {\r\n    s := \"Hii Prwatech...\"\r\n    fmt.Println(s)\r\n    fmt.Println(strings.HasSuffix(s, \"BI\"))\r\n}\r\n<\/pre>\n
              Output :<\/p>\n
              PS C:\\GO_Language\\String> go run str2.go\r\nHii Prwatech...\r\nFalse\r\n<\/pre>\n
               <\/p>\n
               <\/p>\n
              3) Go program to illustrate how to repeat a string to a specific number of times<\/p>\n
              \/\/str3.go\r\npackage main\r\n\r\nimport (\r\n    \"fmt\"\r\n    \"strings\"\r\n)\r\n\r\nfunc main() {\r\n    var str = \"Prwatech \"\r\n    fmt.Println(\"\\n \", strings.Repeat(str, 5))\r\n}\r\n<\/pre>\n
              Output :<\/p>\n
              PS C:\\GO_Language\\String> go run str3.go\r\n\r\n  Prwatech Prwatech Prwatech Prwatech Prwatech\r\n<\/pre>\n
               <\/p>\n
               <\/p>\n
              4) Golang program to demonstrate the example of fmt.Scan() function.<\/p>\n
              package main\r\n\r\nimport \r\n    \"fmt\"\r\nfunc main() {\r\n    var no int\r\n    \/\/ Input a number\r\n    fmt.Print(\"Input a number: \")\r\n    n, err := fmt.Scan(&no)\r\n\r\n    \/\/ Print the value, n and err\r\n    fmt.Println(\"number: \", no)\r\n    fmt.Println(n, \" Item(s) scanned.\")\r\n    fmt.Println(\"Error: \", err)\r\n}\r\n<\/pre>\n
              Output :<\/p>\n
              PS C:\\GO_Language\\String> go run scan.go\r\nInput a number: 10\r\nnumber:  10\r\n1  Item(s) scanned.\r\nError:  <nil>\r\n<\/pre>\n
               <\/p>\n
               <\/p>\n
              5) <\/strong>Golang program to demonstrate the example of fmt.Scan() function. Input two values & write their Sentence.<\/p>\n
              package main\r\nimport \"fmt\"\r\n\r\nfunc main() {\r\n    var name string\r\n    var age int\r\n\r\n    fmt.Println(\"Enter the name :\")\r\n    fmt.Scan(&name)\r\n    fmt.Println(\"Enter the age  :\")\r\n    fmt.Scan(&age)\r\n    fmt.Printf(\"My name is  %s I am  %d years old.\", name, age)\r\n\r\n}\r\n<\/pre>\n
              Output :<\/p>\n
              PS C:\\GO_Language\\String> go run scan2.go\r\nEnter the name :Sandeep\r\nEnter the age  :23\r\nMy name is  Sandeep I am  23 years old.\r\n<\/pre>\n
               <\/p>\n","protected":false},"excerpt":{"rendered":"
              INTRODUCTION Definition & Usage Examples An introduction to a programming topic typically provides foundational information about the concept, its usage, and its relevance in software development. In this context, the introduction to “Definition & Usage Examples” would focus on clarifying what these terms mean in the realm of programming and how they contribute to understanding […]<\/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":[667,812,808],"class_list":["post-9761","post","type-post","status-publish","format-standard","hentry","category-go-lang","category-golang-modules","tag-go-lang","tag-go-lang-tutorial","tag-go-language"],"acf":[],"yoast_head":"\nINTRODUCTION Definition & Usage Examples - Prwatech<\/title>\n<meta name=\"description\" content=\"Master Introduction to Nested Structures in Golang - Definition, Usage, and Examples - Dive deep with our expert instructors.\" \/>\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=\"INTRODUCTION Definition & Usage Examples - 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