• Design and implement simple classes.
• Use existing Java class libraries.
• Test and debug code.

You will create a Robot class and supporting driver class with a main method that will create a number of robots and have them perform a set of specific tasks.

You should implement the class shown in the following UML class diagram:

Be sure to note the following:

• The robotName field should be an instance field that stores the individual robot's name.
• The energyLevel field should be an instance field that represents the robot's current energy level (initial set to 100).
• The energyForDishes, energyForRoomCleaning, and energyForLaundry fields should be class fields that represents the energy required to wash the dishes, clean the room, and do the laundry, respectively.
• The constructors should initialize the energy level and name of the robot.
• The setEnergyLevels is a class method that accepts three arguments representing the energy required to wash the dishes, clean the room, and do the laundry.
• The setRobotName method accepts one String argument containing the desired name for the robot.
• The getEnergyLevel method accepts nothing and returns the robot's current energy level.
• The chargeNow method accepts the energy charge to added to the robot's current energy level.
• The washTheDishes method displays to the console a note that it is washing the dishes and reduces the robot's current energy level by an appropriate amount.
• The cleanTheRoom method displays to the console a note that it is cleaning the room and reduces the robot's current energy level by an appropriate amount.
• The doTheLaundry method displays to the console a note that it is doing the laundry and reduces the robot's current energy level by an appropriate amount.

You should also write a driver program that creates three robots: Emily, Jacob, and Emma. Emily should wash the dishes twice and clean the room once. Jacob should wash the dishes once, clean the room once, and do the laundry once. Emma should clean the room once, get a boost of 50 energy units and then do the laundry five times. After all of the tasks have been performed, the current energy level for each robot should be displayed on the console.

The program should set the energy required for washing the dishes to 10 units; the energy required for clean the room to 40 units; and the energy required for do the laundry to 20 units.

Each student should indicate how much time you spend on this assignment in the FAST system. You are encouraged to log your activity as you work on the project. At a minimum, you should log all of the time spent on this assignment before the due date given above. All time spent on this assignment should be entered into the week 5 column (even if you worked on it in week 6).

Dr. Taylor's students should use this XML template as a starting point for their reports.

Each student should submit a lab report. Your report should include:

• Sample program output for the program.
• Discussion (problems you encountered (and how they were overcome), what you learned, what surprised you, etc...)
• Documented source code for your two classes.

As with any report you submit, correct spelling and grammar are required. In addition, your report should be submitted electronically following the Electronic submission guidelines. (You may wish to consult the sample report before submitting your report.) Be sure to keep copies of all your files, in case something gets lost.

If you have any questions, consult your instructor.

This laboratory assignment was developed by Dr. Chris Taylor and is based on a similar assignment by Dr. Mark Hornick.

© 2001-2006 Dr. Christopher C. Taylor

Office: CC-36C

Phone: 277-7339