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Go Keywords
  • Difficulty Level : Basic
  • Last Updated : 03 Feb, 2020

Keywords or Reserved words are the words in a language that are used for some internal process or represent some predefined actions. These words are therefore not allowed to use as an identifier. Doing this will result in a compile-time error.

Example:

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// Go program to illustrate the
// use of keywords
package main
import "fmt"
  
// Here, package, import, func,
// var are keywords
func main() {
  
// Here, a is a valid identifier
var a = "GeeksforGeeks" 
  
fmt.Println(a)
  
// Here, the default is an
// illegal identifier and
// compiler will throw an error
// var default = "GFG"
}

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Output:

GeeksforGeeks

There are total 25 keywords present in the Go language as follows:

break
case
chan
const
continue
default
defer
else
fallthrough
for
func
go
goto
if
import
interface
map
package
range
return
select
struct
switch
type
var

Example:

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// Go program to illustrate 
// the use of keywords
  
// Here package keyword is used to 
// include main package in the program
package main
  
// import keyword is used to 
// import "fmt" in your package
import "fmt"
  
// func is used to
// create function
func main() {
  
    // Here, var keyword is used 
    // to create variables
    // Pname, Lname, and Cname 
    // are the valid identifiers
    var Pname = "GeeksforGeeks" 
    var Lname = "Go Language" 
    var Cname = "Keywords"
      
    fmt.Printf("Portal name: %s", Pname)
    fmt.Printf("\nLanguage name: %s", Lname)
    fmt.Printf("\nChapter name: %s", Cname)
  
}

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Output:

Portal name: GeeksforGeeks
Language name: Go Language
Chapter name: Keywords



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