Friday, November 8, 2013

Chapter 5 Computer Science Questions

Chapter 5 End-Of-Chapter questions Multiple Choice 1. a 2. c 3. a 4. b 5. e 6. c 7. e 8. d 9. e 10. d True/False 1. t 2. t 3. f 4. f 5. t 6. t 7. f 8. t 9. t 10. t Short Answer 5.1 What is output by the following(a) code? String s1 = hello ; String s2 = s1; s2 = s2 + there ; System.out.println(s1); System.out.println(s2); hello hello there 5.2 Discuss how Java passes contestations to a mode. Is this proficiency the same for primitive types and butts? Explain. Java passes all parameters by look on which means that the current value of the actual parameter is copied into the clump parameter in the manner header. * 5.3Explain wherefore a unchangeable method cannot refer to an instance variable. A static method is invoked through a flesh sooner than through an object of the path. No object of the class need to be instantiate d in order to invoke a static method 5.4 cease a class implement two port wines that all(prenominal) guide the same method signature? Explain. Yes, The class which implements an port provides method implementations for each of the abstract methods defined in the interface. 5.
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5 snitch an interface called ocular that includes two methods: make gross and makeInvisible. Both methods should take no parameters and should return a Boolean result. get out how a class talent implement this interface. semipublic interface Visible { public boolean makeVisible (); public boolean makeInvisibl e (); } A class implementing Visible would! bug out with public class Icon implements Visible * 5.6Create an interface called videocassette recording equipment with methods that represent what a video cassette recorder does ( period of play, reside, etc.). Define the method signatures any way you want. Describe how a class might implement this interface. public interface VCR { public null play (); public keep down pause (); public void stop (); public void rewind ();...If you want to get a replete(p) essay, order it on our website: OrderCustomPaper.com

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