Blessings Young

 
Part 1
Modify your Java application so that it is an easy-to-use GUI  application where all of the interaction is performed on one screen. You  will now take the individual components and translate them to a single  interactive GUI interface using the following GUI components, container,  the event listeners, and event subclasses to enhance your application  as a more GUI-appropriate interface:

GUI components  
Container  
Event listeners  
Event subclasses (at least 3–4 utilized)   

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ActionEvent  
ItemEvent  
FocusEvent  
KeyEvent  
MouseEvent  
WindowEvent 

ActionPerformed Method 

Part 2
For this assignment, you are being asked to make sure you are  exception handling by verifying that all of the customer-entered  information is valid before the order is submitted to ensure order  accuracy. 
The customer information that the customer must now enter that should be validated includes the following:

Entered user name (must fill in a name)  
Entered at least one sub to order  
Selected all three attributes for sub (such as bread type, sub type, and sub size)  
Entered delivery address that includes street, city, state, and zip code  
Entered telephone number xxx-xxx-xxxx 

In this assignment, you are adding in error handling to make sure the customer is filling in all of the required information.
To accomplish this task, you will be utilizing the following Java classes:

Methods in the character class and StringBuilder class to validate and manipulate characters in a string  
Try… Catch for the exception handling of all input fields 

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