Objects First with Java: A Practical Introduction Using BlueJ (6th Edition)
Objects First with Java: A Practical Introduction Using BlueJ (6th Edition)
6th Edition
ISBN: 9780134477367
Author: David J. Barnes, Michael Kolling
Publisher: PEARSON
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Chapter 3, Problem 43E

Explanation of Solution

Given: The mail-system project, an object of MailServer, and three objects of MailClient.

To find: An object diagram after creating an object of MailServer and three objects of MailClient.

Solution:

In order to create an object of MailServer, it is necessary to right click on the MailServer class, and then click on new MailServer(); and then click on “ok� button.

Similarly, an object of another class named MailClient can be created.

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