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Homework4 - CSE 335 Homework 4 Objectives 1 Exercise use of...

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CSE 335 Homework 4 Objectives: 1. Exercise use of abstract classes and interfaces. 2. Understand reasons for refactoring a set of classes in order to support various maintenance goals. Description: The files ˜cse335/AlexLiu/HW/HW04/ * comprise a small GUI application that allows users to enter an unsigned integer in some interval [lowerBound . . . upperBound]. The GUI itself contains a text-entry box, into which the user may type the integer, and a reset button. The text-entry box ensures that any input is valid and within the prescribed range when the user types the enter key. In addition, this text-entry object is being actively monitored (every hundredth of a second) for changes by the main event loop that drives the GUI. When the value in the text-entry box has changed, the event loop queries the new value and prints this value to standard error. The code for the event loop is encapsulated in a function called processGUIBehavior . The text-entry box itself, an object of class IvalText
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