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Thread: Switch Case Meny with Do while loop that doesnīt end

  1. #1
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    Default Switch Case Meny with Do while loop that doesnīt end

    Hi

    I have a problem with a switch case meny. As selection number 5 the program will quit. I have built the meny in a do while loop that will run as long as menyChoise isnīt equal to "5", but it does not end. Please help me and explain whats wrong.

    import java.util.Scanner;
    public class UI {
     
    	public static void main(String[] args) {
     
    		String menyChoise = null;
     
    		do {
    		for (int x=1; x<50; x++) {
    			System.out.println(" ");
    		}
     
    		System.out.println("Welcome to Landegrens Hotel service.");
    		System.out.println("1. List Availible Rooms");
    		System.out.println("2. List Booked Rooms");
    		System.out.println("3. Check In Person");
    		System.out.println("4. Check Out Person");
    		System.out.println("5. Quit");
    		System.out.print("Please choose what you want to do by entering number:");
    		Scanner scan = new Scanner(System.in);
    		menyChoise = scan.nextLine();
     
    		switch (menyChoise) {
    			case "1":
    				System.out.println("You want to list all availible rooms");
    				try        
    				{
    				    Thread.sleep(2000);
    				} 
    				catch(InterruptedException ex) 
    				{
    				    Thread.currentThread().interrupt();
    				}
    				break;
    			case "2":
    				System.out.println("You want to list booked rooms");
    				try        
    				{
    				    Thread.sleep(2000);
    				} 
    				catch(InterruptedException ex) 
    				{
    				    Thread.currentThread().interrupt();
    				}
    				break;
    			case "3":
    				System.out.println("You want to Check In a person");
    				try        
    				{
    				    Thread.sleep(2000);
    				} 
    				catch(InterruptedException ex) 
    				{
    				    Thread.currentThread().interrupt();
    				}
    				break;
    				case "4" :
    				System.out.println("You want to check out a person");
    				try        
    				{
    				    Thread.sleep(2000);
    				} 
    				catch(InterruptedException ex) 
    				{
    				    Thread.currentThread().interrupt();
    				}
    				break;
    			case "5" :
    				System.out.println("Quiting Program. Se Yaah");
    				try        
    				{
    				    Thread.sleep(2000);
    				} 
    				catch(InterruptedException ex) 
    				{
    				    Thread.currentThread().interrupt();
    				}
    				break;
    			default:
    				System.out.println("Please choose a menynumber from 1-5");
    				try        
    				{
    				    Thread.sleep(2000);
    				} 
    				catch(InterruptedException ex) 
    				{
    				    Thread.currentThread().interrupt();
    				}
    				break;
    		}
     
    		}while (menyChoise != "5");
     
    	}
     
    }

  2. #2
    Member John Joe's Avatar
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    Default Re: Switch Case Meny with Do while loop that doesnīt end

    You are are adding " ", so it has became String instead of int/number.

    To compare String, you have to use .equals();

    while (!menyChoise.equals("5"));   // not equals
    Whatever you are, be a good one

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