Introduction Computer Science

• chapter 4
• chapter 5
  • exercise girl project
• chapter 6
• chapter 7
• chapter 8

• while loop **(required)
• variables **(required)

Choose 3 below
• relational operator
• regular 'loop'
• use of a 'saved object' (like the pterodactyl)
• if else structure

Note regarding project 3: make sure that your variables and objects use camelCase. Only class names use PascalCase. Also, part of the grade will be based on whether or not your project tells a coherent story

• 1) include at least 10 instances of a particular class
• 2) have all of these instances associated with one particular variable
• 3) use a relational operator

• variable
• while loop
• relational operator

• Three girls Jenny, Kelly, and Barb are enrolled in an exercise class. One day after class the three decide to have a friendly competition to see how many sets of 10 repetitions of running in place each can do before getting tired. Barb decides to go first and gets tired at10 repetitions. Kelly goes next and she gets tired at 20 expiations Jenny, who has been in the exercise class for the longest, goes next. She gets tired at 30 expiations
  
  Create a world that suites the competition. Each of the girls should be an instance of ExerciseGirl class that you created in chapter 5. Set each girls getsTiredAt property to the appropriate value so the girls get tired at the correct number of repetitions

• loop
• while loop
• parameter (extra credit for this one)

• Add a jumpingJack method to the ExerciseGirl class. THe method should make the object perform jumping jacks and should have a parameter for the number of repetitions to perform. Be sure to increment the repsDone property after each repetition.

• Create a word that shows two spaceships orbiting Earth. For Earth, use an instance of the Globe class from the Web gallery's Objects collection. After you insert an instance o the class, delete all of the subparts except for the GlobeBall. You can find a variety of spaceships in the Web Gallery's Space collection.

• Marcello the magician has finally mastered his disappearing act. To perform the act, he places several items on a table in front of him. He stands with his right arm extended over an item. He says the magic word "Alakazam, Alakazee" and the object disappears. He repeats this procedure for each object on the table.
• Create a world in which Marcello (an instance of the Magician class from the People Collection. demonstrates his new act . In the magician object you should create two new class-level methods: sayMagicWords andmakeDisappear . The sayMagicWords should cause Marcello to say the magic words. The makeDisappear method should have an Object parameter. It should cause Marcello to turn to face the object, say the magic words (by calling the sayMagicWords method) and then make the object disappear by setting its isShowing property to false.
• After you have created and tested the methods, save this object to a new class so you can use it in other worlds.

• Create an interactive world that asks tech user to enter a umber that is at least 1 but not greater than 10. A character of your choice should translate the number to Roman numerals and say the Roman numerals in a speech bubble. If the user enters a number outside the range of 1 through 10, the character should say that an invalid number was entered. The method should then ask the user whether he or she wants to enter another number. If the user selects Yes, the steps described above should repeat. Otherwise, the method should end.

• Write a program that converts a temperature from Celsius to Fahrenheit and also Fahrenheit to celsius. You should
  • ask the user if he/she wants to convert from celsius to Fahrenheit or the reverse
  • get a number from the user
  • do the proper conversion
  • To get full credit you create a method that accepts a parameter
  • Need a refresher on how to convert between celsuis and Fahrenheit?

• Write a project that tells a cohesive story. The one and only requirement is that you have a method that takes an object parameter.

• Create a sea world with two scubaDiver objects (from the People collection) adrift. Create a helicopter from the vehicles collection and position it off-screen. Create two life preservers as instances of the the Torus class(from the Shapes collection) and position them just below the helicopter's runners Set the torus object's vehicle property to the helicopter so they will move with the helicopter.
• Write a method in the helicopter object named locate. The locate method should take an object as its argument (parameter). THe method should cause the helicopter to turn to face the object, and then circle the object one time.
• Write two more methods named dropLeftPrserver and dropRightPrserver. These methods should cause the left and right life preservers to drop to the surface of the water. TO do this, each method should first set the appropriate torus's vehicle property to the world, and the move the torus down the distance that the torus is above the ground object (which in this case is the water).
• When the world is played, the helicopter should move to the fist scuba diver, circle it, drop one of the life preservers, move to the second scuba diver, circle it, and then drop the other life preserver.

• Create a world in which the user is asked for the number of gallons of fuel his or her car can hold, and the number of miles that he or she can drive on a full tank. Use variables to hold these values. You should also have a variable to hold the car's miles-per-gallon (MPG). Calculate the MPG with the following formula

  MPG = miles/gallons

  The world should have a person and a car. In the initial setup the car should approach the camera and the car should drive into view and stop in front of the camera. The person should then say a message indicating the car's MPG, as calculated from the data entered by the user. Then, the car should drive away, to a position of the world.

Create a world with an instance of the EvilNinja class from the People collection. Modify the EvilNinja object so it can do at least one kind of karate kick and a karate punch. Write the necessary class-level methods to make the EvilNinja make these moves. Save the EvilNinja to a new class named KarateNinja, and import an instance of the new class into a world with a DoJo object from the Environments collection. Write a world level method that makes the KarateNinja object demonstrate how it can kick and punch.