Question 1

Modifying a program in order to eliminate deficiencies is done in the __________ phase of the development cycle.

Accepted Answer

A)   design
B)   implementation
C)   testing
D)   use
E)   maintenance B

Question 2

An object that refers to part of itself within its own methods can use which of the following reserved words to denote this relationship?

Accepted Answer

A)   inner
B)   i
C)   private
D)   this
E)   static D

Question 3

If classes C1 and C2 both implement an interface Cint, which has a method, whichIsIt, and if C1 c = new C1(); is performed at one point of the program, then a later instruction
c.whichIsIt(); will invoke the whichIsIt method defined in C1.

Accepted Answer

A) True 
 B)False  False

Question 4

During program development, software requirements specify

Accepted Answer

A)   how the program will accomplish the task
B)   what task the program must perform
C)   how to divide the task into subtasks
D)   how to test the program when it is done
E)   All of these

Question 5

Which of the following methods is a static method? The class in which the method is defined is given inside the parentheses following the method name.

Accepted Answer

A)   equals(String) 
B)   toUpperCase(String) 
C)   sqrt(Math) 
D)   format(DecimalFormat) 
E)   None of these

Question 6

If a programmer follows the four phases of program development as intended, which of the four phases should require the least amount of creativity?

Accepted Answer

A)   software requirements
B)   software design
C)   software implementation
D)   software testing
E)   all four levels require equal creativity

Question 7

Which of the following would not be considered an algorithm?

Accepted Answer

A)   a recipe
B)   a computer program
C)   pseudocode
D)   a shopping list
E)   travel directions

Question 8

In which phase of program development would you expect the programmer(s) to determine the classes and objects needed?

Accepted Answer

A)   software requirements
B)   software design
C)   software implementation
D)   software testing
E)   this could occur at any time

Question 9

Once we have implemented the solution, we are not done with the problem because

Accepted Answer

A)   the solution may not be the best or most efficient
B)   the solution may have errors and need testing and fixing before we are done
C)   the solution may, at a later date, need revising to handle new specifications
D)   the solution may, at a later date, need revising because of new programming language features
E)   All of these

Question 10

In order to create a constant, you would use which of the following Java words?

Accepted Answer

A)   private
B)   static
C)   int
D)   final
E)   class

Question 11

In what way is black-box testing better than glass-box testing? In what way is glass-box testing better than black-box testing?

Accepted Answer

The answer of In what way is black-box testing better...

Question 12

Provide a reason why a method would be declared static.

Accepted Answer

The answer of Provide a reason why a method would...

Question 13

The most important decisions regarding the development of a system are made during the implementation phase while code is actively being written.

Accepted Answer

A) True 
 B)False

Question 14

In general, spending more time in development to ensure better software will

Accepted Answer

A)   shorten testing time
B)   slightly reduce maintenance efforts
C)   slightly increase maintenance efforts
D)   greatly reduce maintenance efforts
E)   not alter the time it takes for any other stage

Question 15

It is not possible to test out any single method or class of a system until the entire system has been developed, and so all testing is postponed until after the implementation phase.

Accepted Answer

A) True 
 B)False

Question 16

In order to implement Comparable in a class, what method(s) must be defined in that class?

Accepted Answer

A)   equals
B)   compares
C)   both lessThan and greaterThan
D)   compareTo
E)   both compares and equals

Question 17

Unlike the String class where you must pass a message to an object (instance) of the class, in order to use the Math class, you pass messages directly to the class name, as in Math.sqrt().

Accepted Answer

A) True 
 B)False

Question 18

The idea of having programmers and developers meet in order to critique a software design or implementation is known as

Accepted Answer

A)   an interview
B)   a walkthrough
C)   prototyping
D)   aggregation
E)   evolutionary development

Question 19

Formal parameters are those that appear in the method call and actual parameters are those that appear in the method header.

Accepted Answer

A) True 
 B)False

Question 20

Define an interface class that contains two int constants, X = 5 and Y = 10 and one int method called useXY which receives no parameters. Call your interface class XYClass.

Accepted Answer

The answer of Define an interface class that contains two...

Exam 7: Object-Oriented Design

Modifying a program in order to eliminate deficiencies is done in the __________ phase of the development cycle.

An object that refers to part of itself within its own methods can use which of the following reserved words to denote this relationship?

If classes C1 and C2 both implement an interface Cint, which has a method, whichIsIt, and if C1 c = new C1(); is performed at one point of the program, then a later instruction c.whichIsIt(); will invoke the whichIsIt method defined in C1.

During program development, software requirements specify

Which of the following methods is a static method? The class in which the method is defined is given inside the parentheses following the method name.

If a programmer follows the four phases of program development as intended, which of the four phases should require the least amount of creativity?

Which of the following would not be considered an algorithm?

In which phase of program development would you expect the programmer(s) to determine the classes and objects needed?

Once we have implemented the solution, we are not done with the problem because

In order to create a constant, you would use which of the following Java words?

In what way is black-box testing better than glass-box testing? In what way is glass-box testing better than black-box testing?

Provide a reason why a method would be declared static.

The most important decisions regarding the development of a system are made during the implementation phase while code is actively being written.

In general, spending more time in development to ensure better software will

It is not possible to test out any single method or class of a system until the entire system has been developed, and so all testing is postponed until after the implementation phase.

In order to implement Comparable in a class, what method(s) must be defined in that class?

Unlike the String class where you must pass a message to an object (instance) of the class, in order to use the Math class, you pass messages directly to the class name, as in Math.sqrt().

The idea of having programmers and developers meet in order to critique a software design or implementation is known as

Formal parameters are those that appear in the method call and actual parameters are those that appear in the method header.

Define an interface class that contains two int constants, X = 5 and Y = 10 and one int method called useXY which receives no parameters. Call your interface class XYClass.