Data Types

COMP122 Lectures 2021-02-17

Java is strongly typed. This means that all types consist of a value and a type.

Types of Types

There are two different types of type in Java.

Primitive

• int, byte, short and long
• float, and double
• char
• boolean

Composite

• string
• Arrays e.g. int[]

Literals

Literal values are the actual value of some type that occurs.

• 0 or 574489 are literals of type int
• true and false are literals of type boolean