Question 1

You cannot use the fully-qualified name of an enum constant for

Accepted Answer

A)  a case expression. 
B)  an argument to a method. 
C)  a boolean expression. 
D)  All of the above. 
A)  a case expression. 
B)  an argument to a method. 
C)  a boolean expression. 
D)  All of the above.

Question 2

To get the name of a calling enum constant,

Accepted Answer

A)  simply use the enum constant in the statement. 
B)  use the ordinal method. 
C)  use the displayName method. 
D)  use the toString method. 
A)  simply use the enum constant in the statement. 
B)  use the ordinal method. 
C)  use the displayName method. 
D)  use the toString method.

Question 3

A class's static methods do not operate on the fields that belong to any instance of the class.

Accepted Answer

A) True 
 B)False

Question 4

When the this variable is used to call a constructor

Accepted Answer

A)  it must be the first statement in the constructor making the call. 
B)  it can be anywhere in the constructor making the call. 
C)  it must be the last statement in the constructor making the call. 
D)  You cannot use the this variable in a constructor call. 
A)  it must be the first statement in the constructor making the call. 
B)  it can be anywhere in the constructor making the call. 
C)  it must be the last statement in the constructor making the call. 
D)  You cannot use the this variable in a constructor call.

Question 5

When you write an enumerated type declaration, you

Accepted Answer

A)  are actually creating a special kind of class. 
B)  do not enclose the enum constants in quotation marks. 
C)  should use the standard convention of writing the enum constants in uppercase. 
D)  All of the above 
A)  are actually creating a special kind of class. 
B)  do not enclose the enum constants in quotation marks. 
C)  should use the standard convention of writing the enum constants in uppercase. 
D)  All of the above

Question 6

The names of the enum constants in an enumerated data type must be enclosed in quotation marks.

Accepted Answer

A) True 
 B)False

Question 7

The JVM periodically performs this process to remove unreferenced objects from memory.

Accepted Answer

A)  memory shuffling 
B)  system restore 
C)  garbage collection 
D)  memory sweeping 
A)  memory shuffling 
B)  system restore 
C)  garbage collection 
D)  memory sweeping

Question 8

When a field is declared static, there will be

Accepted Answer

A)  a copy of the field for each method in the class. 
B)  a copy of the field in each class object. 
C)  only one copy of the field in memory. 
D)  two reference copies of the field for each method in the class. 
A)  a copy of the field for each method in the class. 
B)  a copy of the field in each class object. 
C)  only one copy of the field in memory. 
D)  two reference copies of the field for each method in the class.

Question 9

By default, a reference variable that is an instance field is initialized to the value

Accepted Answer

A)  null. 
B)  0. 
C)  void. 
D)  static. 
A)  null. 
B)  0. 
C)  void. 
D)  static.

Question 10

If the following is from the method section of a UML diagram, which of the following statements is true?
+ equals(object2:Stock) : boolean

Accepted Answer

A)  This is a public method that accepts a Stock object as its argument and returns a boolean value. 
B)  This is a public method that returns a reference to a String object. 
C)  This is a private method that receives two objects from the Stock class and returns a boolean value. 
D)  This is a private method that returns a boolean value. 
A)  This is a public method that accepts a Stock object as its argument and returns a boolean value. 
B)  This is a public method that returns a reference to a String object. 
C)  This is a private method that receives two objects from the Stock class and returns a boolean value. 
D)  This is a private method that returns a boolean value.

Question 11

Assuming the following declaration exists:
Enum Tree { OAK, MAPLE, PINE }
What will the following code display?
System.out.println(Tree.OAK);

Accepted Answer

A)  OAK 
B)  Tree.OAK 
C)  0 
D)  1 
A)  OAK 
B)  Tree.OAK 
C)  0 
D)  1

Question 12

Overloading is

Accepted Answer

A)  writing a method that does too much processing. 
B)  writing a program that is too large to fit in memory. 
C)  having two or more methods with the same name, but different signatures. 
D)  having two or more methods with the same signature. 
A)  writing a method that does too much processing. 
B)  writing a program that is too large to fit in memory. 
C)  having two or more methods with the same name, but different signatures. 
D)  having two or more methods with the same signature.

Question 13

The key word this is the name of a reference variable that an object can use to refer to itself.

Accepted Answer

A) True 
 B)False

Question 14

A declaration for an enumerated type begins with this key word.

Accepted Answer

A)  enumerated 
B)  enum type 
C)  ENUM 
D)  enum 
A)  enumerated 
B)  enum type 
C)  ENUM 
D)  enum

Question 15

An enumerated data type is actually a special type of class.

Accepted Answer

A) True 
 B)False

Question 16

If you write a toString method for a class, Java will automatically call the method any time you concatenate an object of the class with a string.

Accepted Answer

A) True 
 B)False

Question 17

A static field is created by placing the key word static

Accepted Answer

A)  after the access specifier and field's data type. 
B)  after the access specifier and before the field's data type. 
C)  after the field name. 
D)  in brackets, before the field's data type. 
A)  after the access specifier and field's data type. 
B)  after the access specifier and before the field's data type. 
C)  after the field name. 
D)  in brackets, before the field's data type.

Question 18

You may use this to compare two enum data values.

Accepted Answer

A) the ordinal method B) the ==, >, and < operators C) the equals and compareTo methods D) the moreThan, lessThan, and equalsTo methods A) the ordinal method B) the ==, >, and < operators C) the equals and compareTo methods D) the moreThan, lessThan, and equalsTo methods

Question 19

CRC stands for

Accepted Answer

A)  Class, Recyclability, Collaborations. 
B)  Class, Redundancy, Collections. 
C)  Class, Responsibilities, Collaborations. 
D)  Code, Reuse, Constancy. 
A)  Class, Recyclability, Collaborations. 
B)  Class, Redundancy, Collections. 
C)  Class, Responsibilities, Collaborations. 
D)  Code, Reuse, Constancy.

Question 20

If a class has a method named finalize, it is called automatically just before an instance of the class is destroyed by the garbage collector.

Accepted Answer

A) True 
 B)False

You cannot use the fully-qualified name of an enum constant for

To get the name of a calling enum constant,

A class's static methods do not operate on the fields that belong to any instance of the class.

When the this variable is used to call a constructor

When you write an enumerated type declaration, you

The names of the enum constants in an enumerated data type must be enclosed in quotation marks.

The JVM periodically performs this process to remove unreferenced objects from memory.

When a field is declared static, there will be

By default, a reference variable that is an instance field is initialized to the value

If the following is from the method section of a UML diagram, which of the following statements is true? + equals(object2:Stock) : boolean

Assuming the following declaration exists: Enum Tree { OAK, MAPLE, PINE } What will the following code display? System.out.println(Tree.OAK);

Overloading is

The key word this is the name of a reference variable that an object can use to refer to itself.

A declaration for an enumerated type begins with this key word.

An enumerated data type is actually a special type of class.

If you write a toString method for a class, Java will automatically call the method any time you concatenate an object of the class with a string.

A static field is created by placing the key word static

You may use this to compare two enum data values.

CRC stands for

If a class has a method named finalize, it is called automatically just before an instance of the class is destroyed by the garbage collector.

Introduction to Computers and Java

Java Fundamentals

A First Look at Classes and Objects

Decision Structures

Loops and Files

Arrays and the ArrayList Class

Text Processing and Wrapper Classes

Inheritance

Exceptions and Advanced File I/O

GUI Applications–Part 1

GUI Applications–Part 2

Applets and More

Creating GUI Applications with JavaFX

Recursion

Databases

Filters

Exam 6: A Second Look at Classes and Objects

You cannot use the fully-qualified name of an enum constant for

To get the name of a calling enum constant,

A class's static methods do not operate on the fields that belong to any instance of the class.

When the this variable is used to call a constructor

When you write an enumerated type declaration, you

The names of the enum constants in an enumerated data type must be enclosed in quotation marks.

The JVM periodically performs this process to remove unreferenced objects from memory.

When a field is declared static, there will be

By default, a reference variable that is an instance field is initialized to the value

If the following is from the method section of a UML diagram, which of the following statements is true? + equals(object2:Stock) : boolean

Assuming the following declaration exists: Enum Tree { OAK, MAPLE, PINE } What will the following code display? System.out.println(Tree.OAK);

Overloading is

The key word this is the name of a reference variable that an object can use to refer to itself.

A declaration for an enumerated type begins with this key word.

An enumerated data type is actually a special type of class.

If you write a toString method for a class, Java will automatically call the method any time you concatenate an object of the class with a string.

A static field is created by placing the key word static

You may use this to compare two enum data values.

CRC stands for

If a class has a method named finalize, it is called automatically just before an instance of the class is destroyed by the garbage collector.

Introduction to Computers and Java

Java Fundamentals

A First Look at Classes and Objects

Decision Structures

Loops and Files

Arrays and the ArrayList Class

Text Processing and Wrapper Classes

Inheritance

Exceptions and Advanced File I/O

GUI Applications–Part 1

GUI Applications–Part 2

Applets and More

Creating GUI Applications with JavaFX

Recursion

Databases

Filters