Deck 11: Introduction to Java

Question 1

In Java, the relational and equality operators are used to compare the values stored in strings or other objects.

Answer 1

False

Question 2

A static method, including method main, cannot call an instance method without first creating an object and applying the instance method to that object.

Answer 2

True

Question 3

Static methods cannot call other static methods directly.

Answer 3

False

Question 4

Java programmers usually use all uppercase letters for constant identifiers, with an underscore symbol between words.

Question 5

The primitive data types for Java represent numbers, characters, and Boolean values.

Question 6

Java uses type ____________________ to represent logical data.

Question 7

Statements beginning with the keyword ____________________ cause an exit from the method.

Question 8

In Java, all method arguments are call-____________________.

Question 9

The escape sequence that starts with \u represents a(n) ____________________ character.

Question 10

In Java, Strings are ____________________, that is, they cannot be modified.

Question 11

Java provides a class called ____________________ that stores character sequences and allows its contents to be changed.

Question 12

A(n) ____________________ is a constant value that appears directly in a statement.

Question 13

The ____________________ statements of a programming language determine the flow of execution through a program.

Question 14

A(n) ____________________ is a named description for a group of entities that have the same characteristics.

Question 15

A group of statements that is executed in sequence is written as a(n) ____________________ statement delimited by braces.

Question 16

The ____ is used to write a decision with conditions that select the alternative to be executed.

A) if ... else
B) switch
C) while
D) for

Question 17

In Java and object-oriented programming, the ____ is the fundamental programming unit.

A) JVM
B) class
C) API
D) object

Question 18

The ____ control structure is used to write a decision with scalar values that select the alternative to be executed.

A) if ... else
B) switch
C) while
D) for

Question 19

You can use explicit cast operations to perform a(n) ____ and ensure that the assignment statement will be valid.

A) data type conversion
B) narrowing conversion
C) primitive type conversion
D) exception

Question 20

The ____ control structure is used to write a loop that specifies the repetition condition in the loop header.

A) if ... else
B) switch
C) while
D) case

Question 21

Java provides a set of ____ classes whose objects contain primitive-type values.

A) boolean
B) instance
C) wrapper
D) char

Question 22

____ are program errors that occur during the execution of a program.

A) Packages
B) Tokenizers
C) Streams
D) Exceptions

Question 23

Data fields are also called ____.

A) escape sequences
B) control structures
C) primitive data types
D) instance variables

Question 24

If you define one or more constructors for a class, you must also explicitly define the ____, or it will be undefined for that class.

A) visibility
B) no-parameter constructor
C) data type
D) escape sequence

Question 25

A Java array has a length data field that can be used to determine the array's ____.

A) contents
B) size
C) data type
D) visibility