Part 3: Inheritance Questions [2pt ea / 20 pts]: (GridWorld Lab & Bugs you have been...
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Part 3: Inheritance Questions [2pt ea / 20 pts]: (GridWorld Lab & Bugs you have been missed: RIP 2008-2014) Actor <abstract> set Direction () Bug turn () Critter eat () BoxBug SpiralBug Chameleon makeBox ( ) make Spiral ( ) hide() Consider the class hierarchy given above. Assume each has a default constructor and each has a method as labeled. Indicate whether the following statements valid or invalid. 1) Actor al = new Actor(); 2) Actor a2 = new Bug(); 3) ((Bug) a2).turn(); 4) Bug b1 = new Bug(); 6) b1.makeBox (); Vino I A vino II (8 III (D as I (0 7) ((BoxBug) bl) .makeBox(); ( 293 od beau 8) BoxBug b2 = new SpiralBug(); 9) BoxBug b3 = new BoxBug (); b3.setDirection(); 5) bl. turn(); 10) Critter cl goba = new Chameleon (); Chameleon c2 = (Chameleon) cl; eb 08 (3 Part 3: Inheritance Questions [2pt ea / 20 pts]: (GridWorld Lab & Bugs you have been missed: RIP 2008-2014) Actor <abstract> set Direction () Bug turn () Critter eat () BoxBug SpiralBug Chameleon makeBox ( ) make Spiral ( ) hide() Consider the class hierarchy given above. Assume each has a default constructor and each has a method as labeled. Indicate whether the following statements valid or invalid. 1) Actor al = new Actor(); 2) Actor a2 = new Bug(); 3) ((Bug) a2).turn(); 4) Bug b1 = new Bug(); 6) b1.makeBox (); Vino I A vino II (8 III (D as I (0 7) ((BoxBug) bl) .makeBox(); ( 293 od beau 8) BoxBug b2 = new SpiralBug(); 9) BoxBug b3 = new BoxBug (); b3.setDirection(); 5) bl. turn(); 10) Critter cl goba = new Chameleon (); Chameleon c2 = (Chameleon) cl; eb 08 (3 Part 3: Inheritance Questions [2pt ea / 20 pts]: (GridWorld Lab & Bugs you have been missed: RIP 2008-2014) Actor <abstract> set Direction () Bug turn () Critter eat () BoxBug SpiralBug Chameleon makeBox ( ) make Spiral ( ) hide() Consider the class hierarchy given above. Assume each has a default constructor and each has a method as labeled. Indicate whether the following statements valid or invalid. 1) Actor al = new Actor(); 2) Actor a2 = new Bug(); 3) ((Bug) a2).turn(); 4) Bug b1 = new Bug(); 6) b1.makeBox (); Vino I A vino II (8 III (D as I (0 7) ((BoxBug) bl) .makeBox(); ( 293 od beau 8) BoxBug b2 = new SpiralBug(); 9) BoxBug b3 = new BoxBug (); b3.setDirection(); 5) bl. turn(); 10) Critter cl goba = new Chameleon (); Chameleon c2 = (Chameleon) cl; eb 08 (3
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Solution Class Hierarchy Analysis The class hierarchy shows the following classes Actor Abstract Bug BoxBug SpiralBug Critter Chameleon Abstract Class ... View the full answer
Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
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