Algorithm

Creating a flowchart for a switch statement involves representing the decision-making process that occurs when a certain variable or expression is evaluated against multiple possible values. Below is a basic flowchart template for a switch statement. Please note that the exact structure and symbols used may vary based on the conventions you're following:

  1. Start:

    • This is the starting point of your flowchart.

  2. Initialize Variable:

    • Initialize the variable that will be evaluated in the switch statement.

  3. Decision Node (Switch):

    • Create a diamond-shaped decision node labeled "Switch."
    • The incoming arrow should be labeled with the variable being evaluated.

  4. Cases:

    • For each possible value of the variable, create a rectangular process node.
    • Label each node with the corresponding case value.
    • Connect each case node to the decision node with arrows.

  5. Case Logic:

    • Inside each case node, depict the logic or actions to be taken for that specific case.

  6. Default Case:

    • If there is a default case, create a rectangular process node labeled "Default."
    • Connect it to the decision node.

  7. End:

    • Create an oval-shaped end node to represent the end of the flowchart.

  8. Arrows:

    • Use arrows to connect the nodes and indicate the flow of the process.
    • Label the arrows with any relevant conditions or values.

 

Code Examples

#1 switch case in Golang Programming

Code - Golang Programming

// Program to print the day of the week using  switch case

package main
import "fmt"

func main() {
  dayOfWeek := 3

  switch dayOfWeek {

    case 1:
      fmt.Println("Sunday")
   	 
    case 2:
      fmt.Println("Monday")
   	 
    case 3:
      fmt.Println("Tuesday")
   	 
    case 4:
      fmt.Println("Wednesday")
   	 
    case 5:
      fmt.Println("Thursday")
   	 
    case 6:
      fmt.Println("Friday")
   	 
    case 7:
      fmt.Println("Saturday")
   	 
    default:
      fmt.Println("Invalid day")
  }
}
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Output

x
–
+
cmd
Tuesday

#2 Go switch case with fallthrough

Code - Golang Programming

// Program to print the day of the week using fallthrough in switch

package main
import "fmt"

func main() {
  dayOfWeek := 3

  switch dayOfWeek {
    case 1:
      fmt.Println("Sunday")
   	 
    case 2:
      fmt.Println("Monday")
   	 
    case 3:
      fmt.Println("Tuesday")
      fallthrough
   	 
    case 4:
      fmt.Println("Wednesday")
      	 
    case 5:
      fmt.Println("Thursday")
   	 
    case 6:
      fmt.Println("Friday")
   	 
    case 7:
      fmt.Println("Saturday")
   	 
    default:
      fmt.Println("Invalid day")
  }
}
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#3 Go switch with multiple cases

Code - Golang Programming

// Program to check if the day is a weekend or a weekday

package main
import "fmt"

func main() {
  dayOfWeek := "Sunday"

  switch dayOfWeek {
    case "Saturday", "Sunday":
      fmt.Println("Weekend")

    case "Monday","Tuesday","Wednesday","Thursday","Friday":
      fmt.Println("Weekday")

    default:
      fmt.Println("Invalid day")
  }
}
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Output

x
–
+
cmd
Weekend

#4 Golang switch without expression

Code - Golang Programming

// Program to check if it's February or not using switch without expression

package main
import "fmt"

func main() {
  numberOfDays := 28

  // switch without any expression
  switch {

    case 28 == numberOfDays:
      fmt.Println("It's February")
        	 
    default:
      fmt.Println("Not February")
  }
}
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Output

x
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It's February

#5 Go switch optional statement

Code - Golang Programming

// Program to check the day of a week using optional statement

package main
import "fmt"

func main() {

  // switch with statement
  switch day := 4; day {

    case 1:
      fmt.Println("Sunday")

    case 2:
      fmt.Println("Monday")

    case 3:
      fmt.Println("Tuesday")

    case 4:
      fmt.Println("Wednesday")

    case 5:
      fmt.Println("Thursday")

    case 6:
      fmt.Println("Friday") 
   
    case 7:
      fmt.Println("Saturday")

    default:
      fmt.Println("Invalid Day!")
  }
}
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Output

x
–
+
cmd
Wednesday
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Demonstration

Go Lang Program switch