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CS 192 test questions 1-44 All answers are corrected

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Question

CS 192 test questions 1-44

 

1. Global variables are known to the entire class.

 

A) True

 

 

B) False

 

2.

 

A class diagram consists of a ____ divided into three sections.

 

A) square

 

 

B) rectangle

 

 

C) circle

 

 

D) triangle

 

3.

 

Programmers refer to hidden implementation details as existing in a ____.

 

A) white box

 

 

B) white hole

 

 

C) black box

 

 

D) black hole

 

4.

 

____ is the process of creating a new, derived class from a base class.

 

A) Accessibility

 

 

B) Encapsulation

 

 

C) Inheritance

 

 

D) Polymorphism

 

5.

 

An object is a category of things.

 

A) True

 

 

B) False

 

6.

 

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

 

7.

 

A method’s ____ consists of the method’s statements.

 

A) body

 

 

B) space

 

 

C) space

 

 

D) group

 

8.

 

A constructor may require ____.

 

A) parameters

 

 

B) methods

 

 

C) objects

 

 

D) inheritance

 

9.

 

Everything is an object, and every object is a member of a ____.

 

A) class

 

 

B) method

 

 

C) case

 

 

D) process

 

10.

 

A method is a program module that contains a series of statements that carry out a task.

 

A) True

 

 

B) False

 

11.

 

Simple non-array variables are usually passed to methods by ____.

 

A) value

 

 

B) reference

 

 

C) type

 

 

D) class

 

12.

 

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

 

13.

 

Class diagrams are a type of ____ diagram.

 

A) Unified Illustration Language

 

 

B) Unified Modeling Language

 

 

C) Object-Oriented Modeling Language

 

 

D) Unified Pseudocode Language

 

14.

 

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

 

15.

 

A (n) ____ is one instance of a class.

 

A) Method

 

 

B) object

 

 

C) instantiation

 

 

D) attribute

 

16.

 

Unreachable code statements are program statements that only execute if there is an exception.

 

A) True

 

 

B) False

 

17.

 

A method can be used more than once within a program or in other programs.

 

A) True

 

 

B) False

 

18.

 

Overloaded methods have the same name and parameter lists.

 

A) True

 

 

B) False

 

19.

 

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

 

20.

 

Methods can be ____ correctly by providing different parameter lists for methods with the same name.

 

A) updated

 

 

B) tested

 

 

C) overloaded

 

 

D) passed

 

21.

 

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

 

22.

 

A child class contains all the data fields and ____ of its parent.

 

A) parameters

 

 

B) classes

 

 

C) methods

 

 

D) procedures

 

23.

 

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

 

24.

 

When a main() method needs to use another method, it calls, or invokes it.

 

A) True

 

 

B) False

 

25.

 

____ variables and constants are those that are known to an entire class.

 

A) Global

 

 

B) Local

 

 

C) Universal

 

 

D) Comprehensive

 

26.

 

What is the screen output of the following code segment? Explain the reasoning behind your answer.

 

Answer:- Your Average is

 

You will do better next time!

 

27.

 

Libraries are collections of classes that serve related purposes.

 

A) True

 

 

B) False

 

28.

 

When a variable is declared within a method, it ceases to exist when the method ends.

 

A) True

 

 

B) False

 

29.

 

What will be the output of the below program? List what will be outputed to the screen and explain your answer.

 

Output:- The output is 10 20 30 40 50 60 70 80 90 100

 

Output index is a[0] a[1] a[2] a[3] a[4] a[5] a[6] a[7] a[8] a[9]

 

30.

 

The call stack is where the computer stores the list of exceptions.

 

A) True

 

 

B) False

 

31.

 

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.

 

Answer:-

 

32.

 

Multiple inheritance is the capability to inherit more than one method from a parent class.

 

A) True

 

 

B) False

 

33.

 

A(n) ____ statement indicates the end of the catch block in the pseudocode.

 

A) finalcatch

 

 

B) finally

 

 

C) endcatch

 

 

D) stop

 

34.

 

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

 

35.

 

When illegal division by 0 takes place, an Exception object is not created automatically by the object-oriented language application.

 

A) True

 

 

B) False

 

36.

 

Design a class named CustomerRecord 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. psuedocode) that defines the class.

 

Paper#70282 | Written in 27-Jan-2016

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