Computer - JavaScript

What are the 3 basic types of variables?

• Numbers

• Boolean

• String

• Float

What are the 2 Numerical Variables in Java?

• Integer

  -whole numbers, positive or negative (such as 123 or -456)

• Floating point-numbers with a fractional part, containing one or more decimals (40.25)

• Byte- 100; Stores whole numbers from -128 to 127

• Short-Stores whole numbers from -32,768 to 32,767

How many values do Boolean variables have?

• one

  (true or false)

• indefinite values

• three(positive, negative, and neutral)

• four(true, false, unknown, and undefined)

What is a string-type variable?

• the variable contains a collection of characters (text) surrounded by double quotes ("Hello";)

• the variable contains a collection of numbers

  (12.45)

• the variable contains a collection of words

  (hello out there!)

• the variable contains a collection of symbols

  ("++__")

What three characters must a variable start with?

• var

• int

• let

• const

Are variable names case-sensitive?

• true

• false

Match the following

• integer

• var numApples=3

• string

• var costOfApples = 2.50

• float

• var wantApples = true

• boolean

• var typeOfApples = "HoneyCrisp"

Match the following

• string

• var unitStyle = "tall"

• boolean

• var needBushel = false

• float

• var numOfBushels = 15.5

• integer

• var age = 30