Definition of a class

Definition of a class

Syntax:

public class Name {
  field-1
  ...
  field-n
}

• Name is the name of the class
• field-1 ...field-n are the fields of the class, which represent its properties. Each field-i can be either a data field or an operation field:
  • a data field (or instance variable) is a variable declaration (see later)
  • an operation field (or method) is a method definition (see later)

Each field is qualified with an access modifier, which determines its visibility outside the class (see later).

Semantics:

Defines a class.

• The data fields (or instance variables) are used to represent the internal structure of the objects of the class.
• The operation fields (or methods) are used to realize the functionalities of the class.

The details will be shown later.