Java Final Exam Review

1
Java Final Exam Review

• Part I and II

2
Java Final Exam Review 5.1

• Which statements about class methods are true?
  Choose 4
• Instance variables and instance methods cannot be
  directly accessed by static methods of the same
  class.
• Class methods require that no objects of the
  class be created in order to use these methods.
• The main method is a class method.
• Class methods can access instance data using the
  following dot notation (Class_name.instance_variab
  le)
• Class methods are also known as static methods
• Class methods are also known as instance methods

3
Java Final Exam Review 5.2

• How should data that is final and used outside
  the object be declared?
• Private
• Public
• Package
• Default

4
Java Final Exam Review 5.4

• Which items are included in the syntax of the
  main method? Choose 4
• The access modifier public
• A single argument that describes a data-type of
  int
• A variable to store the arguments data, commonly
  name args
• The qualifier static
• The method name Main
• The return type void

5
Java Final Exam Review 5.5

• What should a constant name start with in order
  to comply with improved readability issues?
• An uppercase letter
• A lowercase letter
• An underline
• A number

6
Java Final Exam Review 5.10

• What must all methods have?
• A name and a return type
• A name and an argument
• A qualifier and argument
• A qualifier and a return type

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Java Final Exam Review 5.11

• What is the lifetime of an object or method
  variable in Java?
• During the compilation process
• Duration of the defining code block
• Duration of the entire program
• During the programming process only

8
Java Final Exam Review 5.14

• What should a variable name start with in order
  to comply with improved readability issues?
• A capital letter
• A lowercase letter
• An underline
• A number

9
Java Final Exam Review 5.20

• Which of the following instance variables for
  BankAccount would be declared final?
• accountBalance
• accountNumberId
• lastDateAccessed
• checkingFee

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Java Final Exam Review 5.22

• Where is the object data stored?
• The heap
• The hard drive
• The stack
• The object store

11
Java Final Exam Review 5.24

• When an object of a class is instantiated, what
  is needed to work with that object?
• A reference for that object
• Data for the object
• Methods for the object
• A constructor

12
Java Final Exam Review 4.1

• Which of the following statements regarding shift
  operators is true?
• The operands should not be an int
• They shift the right operand by the number of
  bits specified by the left operand
• The operands should be integral types that are
  generally int or long
• The shift operators include ltlt, ltltlt, gtgt, and gtgtgt

13
Java Final Exam Review 4.2

• What does the \u character represent?
• An underline
• The letter u
• The escape sequence to encode a Unicode character
• A newline

14
Java Final Exam Review 4.4

• What is the value of x after this statement
  executes
• Int x 14/5 5
• 14
• 10
• 15
• .56

15
Java Final Exam Review 4.5

• The dot operator is used to do which of the
  following operations?
• The dot operator is used to set an attributes
  value.
• The dot operator is used to create new object
  behaviors.
• The dot operator is used to create an object.
• The dot operator is used to access non-private
  methods or member data of an object.

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Java Final Exam Review 4.7

• Which of the following is a valid assignment
  statement?
• Bool done true
• Boolean done true
• Bool done 0
• Boolean done FALSE

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Java Final Exam Review 4.14

• What happens to the sign of a binary number when
  a right shift is applied?
• The sign bit is replaced by a 1
• The sign bit is replaced by a 0
• The sign bit does not change
• Integers in Java are unsigned so this is not a
  concern

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Java Final Exam Review 4.17

• What is the correct syntax for the ternary
  operator?
• Condition, true, else
• Condition? True value else value
• Condition?, true value, else value
• Condition, true value ,else value

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Java Final Exam Review 4.18

• What are the three control structures in Java?
• Sequence, flow, and decision
• Sequence, selection, and decision
• Sequence, selection, and repetition
• Iteration, decision, and repetition

20
Java Final Exam Review 4.21

• Which of the following conversions with
  primitives are allowed?
• Primitive to boolean
• Boolean to primitive
• Primitive to reference
• Double to float

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Java Final Exam Review 4.22

• What is casting?
• Converting one object type to another type
• Deleting the object
• Accessing the non-private attributes of the
  object
• Accessing the private attributes of the object

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Java Final Exam Review

• Part II

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Java Final Exam Review 3.1

• Which of the following integral data types can
  store the largest value?
• Byte
• Short
• Int
• Long

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Java Final Exam Review 3.2

• What type of memory does Java use to store
  objects?
• Registers
• Stack
• Heap
• Static storage

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Java Final Exam Review 3.3

• What uses memory space in the processor and
  provides the fastest access to the data?
• Registers
• Stacks
• Heaps
• Statics

26
Java Final Exam Review 3.4

• Which of the following terms refers to the usage
  rules for symbols and keywords of a language?
• Grammar
• Local
• Syntax
• Constant

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Java Final Exam Review 3.5

• The Java API documentation can be viewed using
  which two display methods?
• Standard or formatted
• Document or image
• Keyword or boolean
• Frames or no frames

28
Java Final Exam Review 3.6

• What refers to the storage area that is used for
  allocating memory when the keyword new is used?
• Stack
• Heap
• Static storage
• Constant storage

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Java Final Exam Review 3.7

• Which data modifier does Java use to create a
  constant?
• Final
• Public
• Protected
• Static

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Java Final Exam Review 3.8

• What is the default value for an object
  reference?
• 0
• False
• Null
• Empty

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Java Final Exam Review 3.9

• What symbols surround statements in a block of
  code?
• White space
• Commas
• Semicolons
• Braces

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Java Final Exam Review 3.10

• What is the syntax for a single line comment in a
  Java source file?
• //
• \\
• / /
• \ \

33
Java Final Exam Review 2.1

• Which of the following contains the attributes
  and behaviors of the object it defines?
• Object
• Class
• Attribute
• Data type
• Method
• Behavior

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Java Final Exam Review 2.2

• What is the name of the Java library of classes?
• API
• JVM
• ARI
• JRE

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Java Final Exam Review 2.3

• What is a class?
• A specific instance of an object
• An object identifier
• An object reference
• A blueprint or specification of an object

36
Java Final Exam Review 2.4

• The Java language uses keywords to identify
  different levels of encapsulation of an object.
  Select the keywords that are also often described
  as access modifiers.
• Private
• Common
• Public
• Protected
• Global

37
Java Final Exam Review 3.5

• Which of the following terms refer to a method
  that accomplishes a non-standard task in a class?
• Mutator method
• Accessor method
• Instance method
• Custom method

38
Java Final Exam Review 2.7

• Which terms are used to describe how an object
  knows to do things?
• Behaviors and methods
• Reference and methods
• Operations and behaviors
• Inheritance and behaviors

39
Java Final Exam Review 2.8

• Which term describes a container of data and
  instructions for processing that data?
• Object
• Class
• Attribute
• Data type
• Method
• Behavior

40
Java Final Exam Review 2.9

• One of the first lines of a Java program is the
  class definition. Which Java keyword must be
  included in the class definition?
• Static
• Class
• Final
• Private

41
Java Final Exam Review 2.10

• When designing objects, it helps to ask which of
  these questions? Select two.
• What is the class of the object?
• What are the attributes of the object?
• What are the data types of the object?
• What are the behaviors of the object?
• What is the encapsulation of the object?

42
Java Final Exam Review 2.11

• Which acronym below is a collection of symbols
  and patterns of symbols used to describe objects,
  the relationship between objects, the use of
  objects, and the access of objects?
• URL
• JVM
• UML
• HTM
• DDC

43
Java Final Exam Review 1.1

• Which of the following are used to instruct a
  program to perform mathematical calculations or a
  test of data?
• Keywords
• Identifiers
• Syntax
• operators

44
Java Final Exam Review 1.2

• Which program must run in order to run a Java
  class file?
• The Java compiler
• The code that emulates the Java processor
• The Java Vital Management
• The jar decompression

45
Java Final Exam Review 1.3

• Which term describes a programming error that
  occurs when a program is executed?
• Output error
• Syntax error
• Runtime error
• Input error
• Compiler error

46
Java Final Exam Review 1.4

• What are the two categories of software
  classification? Choose two
• Game
• Operating system
• Internet browser
• Application
• utility

47
Java Final Exam Review 1.5

• Which of the following is used to create HTML
  documentation for a Java class?
• Javac
• Jar
• Jbd
• Javadoc

48
Java Final Exam Review 1.6

• Which of the following programming paradigms
  requires a programmer to use a linear approach to
  software development?
• Event driven programming
• Functional programming
• Object oriented programming
• Procedural programming

49
Java Final Exam Review 1.8

• Which one of the following keywords is required
  when declaring the main method that is the start
  of a Java application?
• Static
• Class
• Final
• Int

50
Java Final Exam Review 1.9

• What are the two ways that different programming
  languages use to change source code into machine
  language?
• Analyze or design
• Compile or execute
• Compile or interpret
• Interpret or execute

51
Java Final Exam Review 1.11

• Which of the following could possibly cause a
  runtime error?
• Misspelled keyword
• Missing semicolon
• Division by zero
• Incorrect class modifier

52
Java Final Exam Review 1.12

• Which of the following types of applications is
  Java most commonly used to create?
• Marketing applications
• Mainframe applications
• E-commerce applications
• Database applications