CS192 SHORT QUESTIONS 932
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1. Creating multiple methods with the same name, which will act differently and appropriately when used with different types of objects, is known as polymorphism. A) True B) False 2. A method can be used more than once within a program or in other programs. A) True B) False 3. Libraries are collections of classes that serve related purposes. A) True B) False 4. Methods can be ____ correctly by providing different parameter lists for methods with the same name. A) updated B) tested C) overloaded D) passed 5. A method’s ____ consists of the method’s statements. A) body B) space C) space D) group 6. What is the screen output of the following code segment? Explain the reasoning behind your answer. Test1 = 70 Test2 = 80 Test3 = 84 NumberOfTests = 3 Average = (Test1 + Test2 + Test3) / NumberOfTests IF Average >= 90 THEN Output “Great job” Output “Your average is: ”, Average ELSE IF Average >= 80 or Average <=89 THEN Output “Nice work” Output “Your average is: “, Average ELSE Output : “Your Average is:”, Average Output “, You will do better next time!” ENDIF HTML Editor 7. A ____ reference is an automatically created variable that holds the address of an object and passes it to an instance method whenever the method is called. A) key B) public C) that D) this 8. When a main() method needs to use another method, it calls, or invokes it. A) True B) False 9. A ____ is > 0 index = index – 1 output numbers[index] endwhile return endClass HTML Editor 24. Methods are sometimes called ____. A) segments B) modules C) classes D) routines 25. A ____ is a segment of code that can handle an exception that might be thrown by the try block that precedes it. A) catch method B) throw block C) catch block D) throw statement 26. ____ variables and constants are those that are known to an entire class. A) Global B) Local C) Universal D) Comprehensive 27. When a variable is declared within a method, it ceases to exist when the method ends. A) True B) False 28. A parent class is the same thing as a base class. A) True B) False 29. Class diagrams are a type of ____ diagram. A) Unified Illustration Language B) Unified Modeling Language C) Object-Oriented Modeling Language D) Unified Pseudocode Language 30. ____ is the process of creating a new, derived class from a base class. A) Accessibility B) Encapsulation C) Inheritance D) Polymorphism 31. A catch block consists of four different elements: the keyword catch, followed by parentheses that contain an exception type and identifier, statements that take action to handle the error condition, an endcatch statement, and a return statement. A) True B) False 32. Multiple inheritance is the capability to inherit more than one method from a parent class. A) True B) False 33. Everything is an object, and every object is a member of a ____. A) class B) method C) case D) process 34. The ability to use methods without knowing the details of their contents is a feature of ____. A) abstraction B) encapsulation C) inheritance D) construction 35. The object-oriented techniques to manage errors such as dividing a value by 0 comprise the group of methods known as ____. A) exception handling B) error handling C) exception processing D) error processing 36. What is one item that must be included in a method’s header if it can receive a parameter? A) local parameter name B) global parameter name C) parameter’s client D) return data structure 37. The call stack is where the computer stores the list of exceptions. A) True B) False 38. A child class contains all the data fields and ____ of its parent. A) parameters B) classes C) methods D) procedures 39. Unreachable code statements are program statements that only execute if there is an exception. A) True B) False 40. A(n) ____ is one instance of a class. A) method B) object C) instantiation D) attribute 41. When a data field is private, it is said to be ____ to any class other than the one in which it is defined. A) uninheritable B) implicit C) unreachable D) inaccessible 42. A class diagram consists of a ____ divided into three sections. A) square B) rectangle C) circle D) triangle 43. You can write as many constructors for a class as you want, as long as they all have different ____ lists. A) object B) data field C) method D) parameter 44. Programmers refer to hidden implementation details as existing in a ____. A) white box B) white hole C) black box D) black hole
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