• Go has three output functions:

1. Print()
2. Println()
3. Printf()

1) Print(): function print its arguments with the default format.

1.  Program to illustrate print function.

   package main
   
   import "fmt"
   
   func main() {
       var i, j string = "Prwa", "tech"
   
       fmt.Print(i)
       fmt.Print(j)
   
   }
   

   Output :

2. Program to illustrate print function in new line using “\n”.

   package main
   
   import "fmt"
   
   func main() {
       var i, j string = "Data", "Science"
   
       fmt.Print(i, "\n")
       fmt.Print(j, "\n")
   }
   

   Output :

3. Program to illustrate print function in a line using “\n”.

   package main
   
   import "fmt"
   
   func main() {
       var i, j string = "Data", "Science"
   
       fmt.Print(i, "\n", j)
   }
   

   Output :

4. Program to represent the print function of integer values.

   package main
   
   import "fmt"
   
   func main() {
       var i, j = 10, 20
   
       fmt.Print(i, j)
   }
   

   Output :

2) println(): whitespace is added between the arguments, and a newline is added at the end:

package main
import "fmt"

func main() {
    var i, j string = "Parwa", "Tech"
    fmt.Println(i, j)
}

Output :

3) Printf(): first formats its arguments based on the given formatting verb and then print them.

%v         use to print the value of the arguments

%T        used to print the type of the arguments

package main

import "fmt"

func main() {
    var i string = "PRWATECH"
    var j int = 10

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

Output:

• Formatting Verb for Printf()

5. Program to illustrate printf function of verbs can be used with all data types.

package main
import "fmt"
func main() {
    var i = 10.5
    var X = "PRWATECH"

    fmt.Printf("%v\n", i)
    fmt.Printf("%#v\n", i)
    fmt.Printf("%v%%\n", i)
    fmt.Printf("%T\n", i)

    fmt.Printf("%v\n", X)
    fmt.Printf("%#v\n", X)
    fmt.Printf("%T\n", X)
}

Output :

6. Program to illustrate printf function of verbs can be used with integer data types.

package main
import "fmt"
func main() {
    var i = 10

    fmt.Printf("%b\n ", i)
    fmt.Printf("%d\n ", i)
    fmt.Printf("%+d\n ", i)
    fmt.Printf("%o\n ", i)
    fmt.Printf("%O\n ", i)
    fmt.Printf("%x\n ", i)
    fmt.Printf("%X\n ", i)
    fmt.Printf("%#x\n ", i)
    fmt.Printf("%4d\n ", i)
    fmt.Printf("%-4d\n ", i)
    fmt.Printf("%04d\n ", i)
}

Output :

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