Easy Use of switch in Java!

Switch

Switch is used as an alternative of if else series of statements. It is more efficient and easy to use than if else if ladder.

Syntax

Switch value{body.. }

Test application

I am going to create a test application in Java using switch that will allow the user to enter any integer numbers from 0 to 10 and the program will produce output in alphabets against any number entered.

import java.util.Scanner;


public class SwitchDemo {

 
 public static void main(String arg[]) {
  
  
    
  System.out.println("Enter the Number to convert " +
    "in alphabets");
  Scanner in = new Scanner(System.in);
  int a;
  do{
   a = in.nextInt();
  
  
   switch(a){
   case 0:
    System.out.println("Zero");
    break;
   case 1:
    System.out.println("One");
    break;
   case 2:
    System.out.println("two");
    break;
   case 3:
    System.out.println("Three");
    break;
   case 4:
    System.out.println("Four");
    break;
   case 5:
    System.out.println("Five");
    break;
   case 6:
    System.out.println("Six");
    break;
   case 7:
    System.out.println("Seven");
    break;
   case 8:
    System.out.println("Eight");
    break;
   case 9:
    System.out.println("Nine");
    break;
   case 10:
    System.out.println("Ten");
    break; 
   default:
    System.out.println("Wrong input");
    break;
   }
  }while(a<=10); 
    
   
   
  }
  
 }

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