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syntactic unit > definition > class definition

class definition
subject			fact

class definition	if a class definition does not contain the extends keyword then the class is a subclass of Object class
	can contain class methods, class variables, instance methods, instance variables
	has definition A definition that specifies a class and includes the class body
	has 1 or more constructors for the class
	has example public class HelloWorld { public static void main(String[] args) { System.out.println("Hello World!"); } }
	has part class declaration, class body
	has purpose to define a class
	has syntax public abstract final class nameOfClass extends Super implements Interfaces { ClassBody }
	is a subtopic of Classes
	is stored in source file with the same name as the class and extension .java
	is a kind of definition
definition	causes a compiler to set aside memory at compile time
syntactic unit	has syntax rule bold = mandatory italic = non-terminal normal font = optional