Syntax of a Class Definition

Class definitions look like this:

class ClassName
{

  Descriptions of the instance variables and methods each object
  will have and the constructors that initialize a new object.

}

Often programmers separate the definition into three sections:

class ClassName
{
  // Description of the variables.

  // Description of the constructors.

  // Description of the methods.
}

Separating the class into sections is done for clarity. It is not a rule of the language. A simple class might have just a few variables and be defined in just a few lines of code. A large, complicated class might take thousands of lines of code for its definition.