Data Types and Concepts

Front

Variable

Back

Stores data that can change during program execution

Front

Constants

Back

Stores fixed values that cannot change.

Front

Integer

Back

Whole numbers. (3, 5, -6, -25)

Front

Real/Single/Double

Back

Numbers with decimals. (2.4, 5.67)

Front

Boolean

Back

True or False. (T or F, 0 or 1, No or Yes)

Front

Character

Back

Single letter, number, or symbol. ("a", "%", "7")

Front

String

Back

A series of characters. ("Hello", "goodbye", "yellow")

Front

Casting

Back

Converting data from one type to another.