Java Exam CH. 17 2025 Questions
and Answers
Prior to Java SE 8, Java supported three programming paradigms. Java SE 8 adds
________.
a. procedural programming
b. object-oriented programming
c. generic programming
d. functional programming. - ANSWER✔✔-d. functional programming
The new language and library capabilities that support functional programming were
added to Java as part of Project ________.
a. Utilitarian
b. Upsilon
c. Lambda
d. Utility - ANSWER✔✔-c. Lambda
,Which of the following statements is false?
a. Prior to functional programming, you typically determined what you wanted to
accomplish, then specified the precise steps to accomplish that task.
b. Using a loop to iterate over a collection of elements is known as external iteration and
requires accessing the elements sequentially. Such iteration also requires mutable
variables. External iteration is easier to parallelize.
c. Letting the library determine how to iterate over a collection of elements is known as
internal iteration.
d. Functional programming focuses on immutability—not modifying the data source
being processed or any other program state - ANSWER✔✔-b. Using a loop to iterate
over a collection of elements is known as external iteration and requires accessing the
elements sequentially. Such iteration also requires mutable variables. External iteration
is easier to parallelize. Actually, internal iteration is easier to parallelize.
Which of the following statements is false?
a. Functional interfaces are also known as single abstract method (SAM) interfaces.
b. Package java.util.function contains six basic functional interfaces BinaryOperator,
Consumer, Function, Predicate, Supplier and UnaryOperator.
c. There are many specialized versions of the six basic functional interfaces for use with
int, long and double primitive values. There are also generic customizations of
, Consumer, Function and Predicate for binary operations—that is, methods that take
two arguments.
d. All of these statements are true - ANSWER✔✔-All of these statements are true
The basic generic functional interface ________ in package java.util.function contains
method apply that takes two T arguments, performs an operation on them (such as a
calculation) and returns a value of type T.
a. Consumer<T>
b. Function<T,R>
c. Supplier<T>
d. BinaryOperator<T> - ANSWER✔✔-d. BinaryOperator<T>
The basic generic functional interface ________ in package java.util.function contains
method accept that takes a T argument and returns void. Performs a task with its T
argument, such as outputting the object, invoking a method of the object, etc.
a. Consumer<T>
b. Function<T,R>
c. Supplier<T>
d. BinaryOperator<T> - ANSWER✔✔-a. Consumer<T>
and Answers
Prior to Java SE 8, Java supported three programming paradigms. Java SE 8 adds
________.
a. procedural programming
b. object-oriented programming
c. generic programming
d. functional programming. - ANSWER✔✔-d. functional programming
The new language and library capabilities that support functional programming were
added to Java as part of Project ________.
a. Utilitarian
b. Upsilon
c. Lambda
d. Utility - ANSWER✔✔-c. Lambda
,Which of the following statements is false?
a. Prior to functional programming, you typically determined what you wanted to
accomplish, then specified the precise steps to accomplish that task.
b. Using a loop to iterate over a collection of elements is known as external iteration and
requires accessing the elements sequentially. Such iteration also requires mutable
variables. External iteration is easier to parallelize.
c. Letting the library determine how to iterate over a collection of elements is known as
internal iteration.
d. Functional programming focuses on immutability—not modifying the data source
being processed or any other program state - ANSWER✔✔-b. Using a loop to iterate
over a collection of elements is known as external iteration and requires accessing the
elements sequentially. Such iteration also requires mutable variables. External iteration
is easier to parallelize. Actually, internal iteration is easier to parallelize.
Which of the following statements is false?
a. Functional interfaces are also known as single abstract method (SAM) interfaces.
b. Package java.util.function contains six basic functional interfaces BinaryOperator,
Consumer, Function, Predicate, Supplier and UnaryOperator.
c. There are many specialized versions of the six basic functional interfaces for use with
int, long and double primitive values. There are also generic customizations of
, Consumer, Function and Predicate for binary operations—that is, methods that take
two arguments.
d. All of these statements are true - ANSWER✔✔-All of these statements are true
The basic generic functional interface ________ in package java.util.function contains
method apply that takes two T arguments, performs an operation on them (such as a
calculation) and returns a value of type T.
a. Consumer<T>
b. Function<T,R>
c. Supplier<T>
d. BinaryOperator<T> - ANSWER✔✔-d. BinaryOperator<T>
The basic generic functional interface ________ in package java.util.function contains
method accept that takes a T argument and returns void. Performs a task with its T
argument, such as outputting the object, invoking a method of the object, etc.
a. Consumer<T>
b. Function<T,R>
c. Supplier<T>
d. BinaryOperator<T> - ANSWER✔✔-a. Consumer<T>
