Variables

Question 1

Variables

Answer 1

Named locations in memory where we store information

Question 2

Primitive Data Types

Answer 2

Types of Data built-in the Java system. The three main types are int, double, and Boolean

Question 3

Literal

Answer 3

When the code is used to represent a fixed value

Question 4

Ints

Answer 4

Store the whole number, with no fractions or decimals. Can be positive, negative, or zero

Question 5

Double

Answer 5

Can store much higher numbers than int and can also store decimals and fractions

Question 6

Booleans

Answer 6

Reference either true or false

Question 7

Char

Answer 7

Holds any character, and surrounded by single quotation marks

Question 8

String

Answer 8

Not a primitive type, holds a sequence of characters

Question 9

How to create a string using a String literal

Answer 9

String greeting = “Hello World”;

Question 10

How to create a string by calling the String class

Answer 10

String greeting = new String(“Hello World”);

Question 11

Escape Sequences

Answer 11

Symbols with an alternative use in Java print Statements

Question 12

Escape sequence for “”

Answer 12

"

Question 13

Escape sequence for \

Answer 13

\\

Question 14

Escape sequence for a new line

Answer 14

\n

Question 15

What do variable names have to start with?

Answer 15

A letter, _, or $