Free Java Foundations Exam 1Z0-811 Exam Practice Test

What does import java.io* mean?

• Only the io class is imported.
• All classes in the io package are imported.
• All classes whose names start with io are imported.
• All classes in the io package and the subpackages of io packages, if any, are imported.

Which statement is true about a mutator method?

• It replaces the default constructor.
• It returns mutated instance members.
• It must be declared private.
• It can be used to assign data to instance members.

Identify two Java reserved words.

• array
• true
• this
• exception
• string

Identify two features of Java.

• architecture dependent
• platform independent
• single threaded
• robust

You have a microprocessor board, such as Raspberry PI, wired to control a drone. Which edition of Java is geared towards use of simple, closed systems with constrained memory requirements, such as a microprocessor board?

• Java Micro Edition
• Java Standard Edition with a Compact Profile
• Java Enterprise Edition
• Java SE Embedded

Which package would you import to use the Random class?

• java.io
• java.math
• java.util
• java.lang

Which statement is true about a Java method?

• It must be declared with an access modifier.
• It cannot be defined within another method.
• It must accept a parameter and return a value.
• It cannot be defined as static final.

Which two Java reserved words are used to implement encapsulation?

• final
• static
• public
• extends
• private

Which two components can class declarations include?

• A list of instance methods
• The main method
• Interfaces implemented by the class
• The public modifier

You have been asked to develop a Java program that prints the elements of an array in reverse order. Which looping statement cannot be used to meet the requirement?

• enhanced for
• standard for
• while
• do-while