Computer Science 252
Problem Solving with Java

Fall 2013, The College of Saint Rose

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Agenda

• Announcements
  • Lab 5: Boxball continues
• Exam 1 recap
• Lecture 10 assignment recap
• Java interfaces
• In-class Exercise 11 - (10 lecture assignment points) due before the end of class.

  Extend the ShirtAndPants example to include a third type of article of clothing. Maybe it's warm and you need shorts. Or it's cold and you need a hat. Your new class should be an implementation of the Laundry interface. The only requirements are that your new object consists of at least 3 graphics primitives, at least 1 of which can be colored randomly, and that it can reasonably implement all of the methods required by the Laundry interface. Also modify the ShirtsAndPants class to create objects of your new type with equal probability as the existing TShirt and Pants objects.

  Please submit only the Java file for the new class you create that implements the Laundry interface in Submission Box under "InClass11" before you leave class.

• Any remaining time should be used to work on Lab 5: Boxball

Lecture 11 Assignment

Due at the start of class, Tuesday, October 22.

Please submit answers to these questions in Submission Box under "LA11" by the start of our next class. We will discuss these questions at the start of class, so no late submissions are accepted. Please be sure that your name is clearly indicated in all submissions.

• Design and implement a Java interface called Reshapable that supports three methods that allow the user to change the width, height, and color of an object. (5 points)
• Design and implement a Java class representing a picture frame (a filled colored rectangle with a smaller filled white rectangle inside, leaving the colored border visible). This class should implement the Reshapable interface. (5 points)

Examples

• ShirtsAndPants