Details of this Paper

A+ Answers of the following Questions




1. When illegal division by 0 takes place, an Exception object is not created automatically by the object-oriented language application.;A) True;B) False;2. 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;3. 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;4. A method?s ____ consists of the method?s statements.;A) body;B) space;C) space;D) group;5. 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;6. A ____ is one that sends an exception object out of a method so it can be handled elsewhere.;A) catch statement;B) throw method;C) catch block;D) throw statement;7. Everything is an object, and every object is a member of a ____.;A) class;B) method;C) case;D) process;8. What will be the output of the below program? List what will be out-putted to the screen and explain your answer.;class Class_name;main();// Declarations;num index;num SIZE = 10;num numbers[SIZE] = 0,0,0,0,0,0,0,0,0,0;index = 0;while index 0;index = index ? 1;output numbers[index];endwhile;return;endClass;9. ____ is the process of creating a new, derived class from a base class.;A) Accessibility;B) Encapsulation;C) Inheritance;D) Polymorphism;10. A method can be used more than once within a program or in other programs.;A) True;B) False;11. 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;12. 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;13. Design a class named Customer Record that holds a customer number, name, and address. Include methods to set the values for each data field and output the values for each data field. Create the class diagram and write the code (not language specific, ie. Pseudo code) that defines the class.;14. A(n) ____ statement indicates the end of the catch block in the pseudo code.;A) final catch;B) finally;C) end catch;D) stop;15. Libraries are collections of classes that serve related purposes.;A) True;B) False;16. Write a method that will perform the a division operation (divide by) on the numbers passed to it in two variables (numerator, denominator) and outputs the results. Use a try-catch pair to output an error message if the illegal operation of divide by 0 occurs.;17. A (n) ____ is one instance of a class.;A) method;B) object;C) instantiation;D) attribute;18. 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 end catch statement, and a return statement.;A) True;B) False;19. An object is a category of things.;A) True;B) False;20. Simple non-array variables are usually passed to methods by ____.;A) value;B) reference;C) type;D) class;21. When a main() method needs to use another method, it calls, or invokes it.;A) True;B) False;22. The ability to use methods without knowing the details of their contents is a feature of ____.;A) abstraction;B) encapsulation;C) inheritance;D) construction;23. A method is a program module that contains a series of statements that carry out a task.;A) True;B) False;24. ____ variables and constants are those that are known to an entire class.;A) Global;B) Local;C) Universal;D) Comprehensive;25. 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;26. Methods can be ____ correctly by providing different parameter lists for methods with the same name.;A) up dated;B) tested;C) overloaded;D) passed;27. A class diagram consists of a ____ divided into three sections.;A) square;B) rectangle;C) circle;D) triangle;28. When a data field is private, it is said to be ____ to any class other than the one in which it is defined.;A) un inheritable;B) implicit;C) unreachable;D) inaccessible;29. Overloaded methods have the same name and parameter lists.;A) True;B) False;30. A constructor may require ____.;A) parameters;B) methods;C) objects;D) inheritance;31. A parent class is the same thing as a base class.;A) True;B) False;32. Programmers refer to hidden implementation details as existing in a ____.;A) white box;B) white hole;C) black box;D) black hole;33. The call stack is where the computer stores the list of exceptions.;A) True;B) False;34. The memory location known as the ____ is where the computer stores the list of method locations to which the system must return.;A) method stack;B) location stack;C) call stack;D) store location;35. When appropriate, specialized ____ classes provide an elegant way for you to handle error situations.;A) Exception;B) Error;C) Constructor;D) Event;36. A child class contains all the data fields and ____ of its parent.;A) parameters;B) classes;C) methods;D) procedures;37. Multiple inheritance is the capability to inherit more than one method from a parent class.;A) True;B) False;38. Methods are sometimes called ____.;A) segments;B) modules;C) classes;D) routines;39. Class diagrams are a type of ____ diagram.;A) Unified Illustration Language;B) Unified Modeling Language;C) Object-Oriented Modeling Language;D) Unified Pseudo code Language;40. Unreachable code statements are program statements that only execute if there is an exception.;A) True;B) False;41. Global variables are known to the entire class.;A) True;B) False;42. When a variable is declared within a method, it ceases to exist when the method ends.;A) True;B) False;43. An instance method or constructor may be overloaded by providing the same name and ____ argument list.;A) a different;B) the same;C) a larger;D) a smaller;44. 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


Paper#66434 | Written in 18-Jul-2015

Price : $22