4.3 Reference Types and Values

There are three kinds of reference types: class types (§8), interface types (§9), and array types (§10).

ReferenceType:

	ClassOrInterfaceType

	ArrayType

ClassOrInterfaceType:

	ClassType

	InterfaceType

ClassType:

	TypeName

InterfaceType:

	TypeName

ArrayType:

	Type [ ]

Names are described in §6; type names in §6.5 and, specifically, §6.5.4.

The sample code:

class Point { int[] metrics; }

interface Move { void move(int deltax, int deltay); }

declares a class type Point, an interface type Move, and uses an array type int[] (an array of int) to declare the field metrics of the class Point.