Go Output Functions - Print - Println - Printf

In Go, there are three functions to output text.

Print()
Println()
Printf()

Go Print() Function

Go print() function is one of the output functions which print the arguments with their default format

Example

package main
import ("fmt")

func main() {
  var var1,var2 string = "Hello ","Jhon"

  fmt.Print(var1)
  fmt.Print(var2)
}

Output

Hello Jhon

Go Println() Function

Go Println() function is one of the output functions which print a new line every time it's called and it also add a whitespace between printed arguments

Example

package main
import ("fmt")

func main() {
  var var1,var2 string = "Hello","Jhon"

  fmt.Println(var1, var2)
  fmt.Println(var1)
  fmt.Println(var2)
}

Output

Hello Jhon
Hello
Jhon

Go Printf() Function

Go Printf() function is one of the output functions which can print the value and type concatenated to message

%v is used to print the value of the arguments
%T is used to print the type of the arguments

Example

package main
import ("fmt")

func main() {
  var i string = "Hello"
  var j int = 35
  var k bool = true

  fmt.Printf("i has value: %v and type: %T\n", i, i)
  fmt.Printf("j has value: %v and type: %T", j, j)
  fmt.Printf("k has value: %v and type: %T", k, k)
}

Output

i has value: Hello and type: string
j has value: 35 and type: int
k has value: true and type: bool

Conclusion

In this page (written and validated by A. Gawali) you learned about Go Output Functions - Print - Println - Printf . What's Next? If you are interested in completing Go tutorial, your next topic will be learning about: Go Print Output text in color in console.

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