Lesson 5

Question 1

A statement specifies one or more actions to be performed during the execution of a program. In Java, a
statement is one or more lines of code terminated by a semicolon (;).

Answer 1

Java Statements

Question 2

In Java, statements can be combined to form a statement block. A block is formed by enclosing statements by
curly braces.

Answer 2

Java Blocks

Question 3

used to add notes and documentation to source codes

Answer 3

Java Comments

Question 4

used to add notes and documentation to source codes

Answer 4

Java Comments

Question 5

There are three types of comments in Java

Answer 5

• Block comment
• Line comment
• JavaDoc Comment

Question 6

It starts with a forward slash and asterisk (/) and ends with an asterisk and forward slash (/)

Answer 6

Block comment

Question 7

Starts with two forward slashes (//) and ends at the end of the line the slashes appear on. If the
slashes are the first two characters, then the whole line is considered a comment

Answer 7

Line comment

Question 8

It is used specifically to document classes, attributes, and methods. It starts with a forward
slash and two asterisks (/**). It ends with one asterisk and a forward slash (*/).

Answer 8

JavaDoc Comment

Question 9

are words that are used by the programmers to properly identify or name a class, procedure, method,
or variables.

Answer 9

Java Identifiers

Question 10

rules on how to name an identifier

Answer 10

• alphabetic characters, both upper and lowercase (a-z and A-Z), numbers (0-9), underscores (_), and dollar sign ($).
• cannot start with a number.
• keywords (reserved words) cannot be used

Question 11

is a fixed set of symbols built into the syntax of the language

Answer 11

Java Keywords

Question 12

are items in a program whose values do not change.

Answer 12

Java Literals

Question 13

classification of literals in Java

Answer 13

• Integers (hexadecimal, decimal, octal)
• Floating point numbers
• Booleans (true or false)
• Characters
• Strings

Question 14

Represent different sets of data values and determine which standard operators can be applied.

Answer 14

Data types

Question 15

are the building blocks and are an essential part of a program

Answer 15

Primitive Data Types

Question 16

primitive data types supported by the Java programming language

Answer 16

• boolean (logical)
• char (for textual)
• byte
• short
• int
• long (integral)
• double
• float (floating point)

Question 17

are places in memory that store values

Answer 17

Java Variables

Question 18

are places in memory that store values

Answer 18

Java Variables

Question 19

Two types of Variables

Answer 19

• Primitive Variables
• Reference Variables

Question 20

These store data in the actual memory location of where the variable is.

Answer 20

Primitive Variables

Question 21

They point to another
memory location where the actual data is.

Answer 21

Reference Variables

Question 22

They point to another
memory location where the actual data is.

Answer 22

Reference Variables

Question 23

refer to those whose value does not change

Answer 23

Constants