Thread: While try catch loop

I'm trying to program a try/catch exception while loop that continues till the user enters x to exit. So far i've gotten it to work but i'm having one issue with the console printing "Account x cannot be found" before the program exits.

/**	Murach, J. and Steelman, A., ( 2007).  Murach’s Java SE6,
	Training and Reference.  Fresno, CA: Mike Murach & Associates.
	Modifications by Wm Bowers, 2007 – 2011
	CustomerApp.java interacts with Customer, CustomerIO, Validator
     and NoSuchNumberException
     STARTER Class
*/
 
import java.util.Scanner;
 
public class CustomerApp	{
    public static void main(String args[])	    {
		PriceHeading.getHeading("Assignment 3");//heading call
        // display a welcome message
        System.out.println("  Welcome to the Customer application");
        System.out.println();
 
        // create the Scanner object
        Scanner sc = new Scanner(System.in);
 
        // continue until user enters x
        String custNo = "y";
        while (!custNo.equalsIgnoreCase("x"))	{
            custNo = Validator.getString(sc, "  Enter a customer number (or an \"X\" to quit) ->  ");
            try	{
                Customer cust = CustomerIO.getCustomer(custNo);
                System.out.println("\n" + cust.getNameAndAddress());
            }
            catch (NoSuchCustomerException e){	
            	System.out.println(e.getMessage());	  }
        	} 
 
            System.out.println();
 
        }
    }

public class Customer {
	public String name, address, city, state, zipCode;
	public String getNameAndAddress() {
		return "  " + name + "\n\t\t   "
 
        + address + "\n\t\t   "
 
        + city + ", " + state + " " + zipCode; 
	}
}

class NoSuchCustomerException extends Exception {
	private String customerNumber;
	public NoSuchCustomerException()
	{
	}
 
public NoSuchCustomerException(String customerNumber){
	super("  The customer number " + customerNumber.toUpperCase() + " does not exist");
}
 
public String getCustomerNumber(){
	return customerNumber;
}
}

I'm no pro with the debugger but I don't get the exception message till the catch statement

i'm having one issue with the console printing "Account x cannot be found" before the program exits.

Where in your program is that message being printed?

Sorry, I meant, where in the code is the message printed. I do not see "Acccount" or "cannot be found" in the code you posted. Is the message printed in some other code?

Try debugging your code by printing out the values of the variables as they change.

Can you execute the program and copy the console here.
To copy the contents of the command prompt window:
Click on Icon in upper left corner
Select Edit
Select 'Select All' - The selection will show
Click in upper left again
Select Edit and click 'Copy'

Paste here.

What does your program do immediately after displaying the message:
Enter a customer number (or an "X" to quit) ->
and you enter something?
What is the next statement executed after it reads your response?

Got it figured out. Used a scanner before the while statement then used another scanner at the end. Continues and ends like it should

Another way is to use the break statement.
After the user enters his response, use an if statement to see if he entered the quit signal and then break from the while loop.