switchexample.go

package main

//imported the fmt package
import "fmt"

//main function gets called when the program executes
func main() {

	//we initialize the variable with value 2 and without any data-type
	var i = 2

	switch i {
	//here the case is executed based on the value of i
	case 1:
		//prints if value of i is 1
		fmt.Println("One")
	case 2:
		//prints if value of i is 2
		fmt.Println("Two")
	case 3:
		//prints if value of i is 3
		fmt.Println("Three")
	}
}
>>go run switchexample.go
>>Two