Java fundamental programs to practice: Conditional statement- switch:

               Switch is one of the conditional statements which is useful in selecting one among in multiple options.

Syntax:

Switch(Option)

{

 Case 1: statements…..

               break;

Case 2: statements…..

               break;

---------------------------

---------------------------

Case n: statements…..

               break;

}

Example for switch conditional statement is given below.

Java Program to print the month using switch case:

  • ·       Create a class SwitchMonth with main() function.
  • ·       Get the input from user. Using the switch statement,pass the input.
  • ·       Based on the input given, case statement is selected.
  • ·       The output is displayed as per the input.

//Java Program to print the month using switch case:

import java.util.Scanner;

public class SwitchMonth {

    public static void main(String[] args) {

   Scanner scanner = new Scanner(System.in);

   System.out.print("Enter the number of the month:");

   int m= scanner.nextInt();

   switch (m) {

            case 1:

                System.out.println("January");

                break;

            case 2:

                System.out.println("February");

                break;

            case 3:

                System.out.println("March");

                break;

            case 4:

                System.out.println("April");

                break;

            case 5:

                System.out.println("May");

                break;

            case 6:

                System.out.println("June");

                break;

            case 7:

                System.out.println("July");

                break;

            case 8:

                System.out.println("August");

                break;

            case 9:

                System.out.println("September");

                break;

                  case 10:

                System.out.println("October");

                break;

                  case 11:

                System.out.println("November");

                break;

                  case 12:

                System.out.println("December");

                break;

            default:

                System.out.println("Invalid Month");

                break;

        }

    }

}

·       Compile and execute the program as follows…

C:\raji\blog>javac SwitchMonth.java

C:\raji\blog>java SwitchMonth

Enter the number of the month:6

June

C:\raji\blog>java SwitchMonth

Enter the number of the month:11

November

C:\raji\blog>java SwitchMonth

Enter the number of the month:3

March

C:\raji\blog>java SwitchMonth

Enter the number of the month:20

Invalid Month

This is the way of implementing switch statements to display the month name according to the user’s choice.

 

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