Add a String instance variable, messageUponExiting, to the Window class. This variable will be used to display a message when the user closes the window (for example, "Are you sure you want to quit?"). Furthermore, this variable should be accessible to all subclasses of the Window class, as each sort of window may require a different message upon exiting. Please provide the declaration of the instance variable only—nothing else.
Add a String instance variable, messageUponExiting, to the Window class. This variable will be used to display a message when the user closes the window (for example, "Are you sure you want to quit?"). Furthermore, this variable should be accessible to all subclasses of the Window class, as each sort of window may require a different message upon exiting. Please provide the declaration of the instance variable only—nothing else.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Add a String instance variable, messageUponExiting, to the Window class. This variable will be used to display a message when the user closes the window (for example, "Are you sure you want to quit?"). Furthermore, this variable should be accessible to all subclasses of the Window class, as each sort of window may require a different message upon exiting. Please provide the declaration of the instance variable only—nothing else.
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