Switch Statement

Switch statements used to select one block of code out of many blocks for execution based on matched input.
Default block will execute if any of the cases are not match.

Example

package main
import 
("fmt"
"time")

func main() {
	today := time.Now()
	fmt.Println("Today Date and Time:",today)
	day :=15
//	switch today.Day(){ or
switch day{
	case 2:
	fmt.Println("Today is 2nd, team changing day")
	case 12:
	fmt.Println("Today is 12th, team outing day")
        case 15:
	fmt.Println("Today is 15th, Independence day")
	default:
	fmt.Println("Today is Fun day")
	}
}

You can execute this program live here https://onecompiler.com/go/3ut3ztyu5

Output

Today Date and Time: 2019-07-02 10:40:59.272224254 +0000 UTC m=+0.000192052
Today is 15th, Independence day

Switch Multiple Cases Statement

It is used to select same block of code for different cases.

Example

package main
import "fmt"

func main() {
  
  var day = 10
  day =30
  
  switch day{
    case 5,10,15:
    fmt.Println("Today is holiday")
    case 20,30,31:
    fmt.Println("Today is party day")
    case 6,8,12:
    fmt.Println("Today is team outing day")
    default:
    fmt.Println("Today is fun day")
  }
	
}

You can execute this program live here (https://onecompiler.com/go/3ut46qt5r)

Output

Today is party day

Switch fallthrough Statement

fallthrough keyword is used to force the execution flow to fall through the successive case block.

Example

package main
 
import (
	"fmt"
)
 
func main() {
var number = 5

	switch number {
	case 5:
		fmt.Println("This is 5th case block")
		fallthrough
	case 10:
		fmt.Println("This is 10th case block ")
		fallthrough
	case 15:
		fmt.Println("This is 15th case block")
		fallthrough
	case 25:
		fmt.Println("This is 25th case block.")
	case 31:
		fmt.Println("This is 31st case block.")
	default:
		fmt.Println("No information available .")
	}
}

You can execute this program live here https://onecompiler.com/go/3ut47akzh

Output

This is 5th case block
This is 10th case block 
This is 15th case block
This is 25th case block.