Java abstract class Comparison Table

Object Oriented Software Engineering View all facts Glossary Help

subject > component > module > Java module > Java class > Java abstract class

Java abstract class comparison table

Subject lack have be store is a kind of implement have purpose have form perform place in has part use has definition order extend create by have high cohesion

abstract class instances the unit of data abstraction in an object-oriented program class to hold features that will be inherited by two or more subclasses abstract method A class that cannot have any instances

Java class side effects if it does not modify any data, and does not leave behind any information, other than its result, that would have an effect on other computations a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash abstract if it has one or more abstract methods in a file of the same name Java module particular low-level subsystems
class classname
{ // declarations of variables
// declarations of constructors (discussed below)
// declarations of other methods with public ones first
}
a special-purpose function such as the user interface for a particular system its own source file variables an implements clause to declare that it contains methods for each of the operations specified by the interface elements as follows:
class variables
instance variables
constructors
the most important public methods
methods that are simply used to access variables
private methods
only one superclass if related aspects of a system are kept together in this module, and unrelated aspects are kept out

Java abstract class side effects if it does not modify any data, and does not leave behind any information, other than its result, that would have an effect on other computations one or more abstract methods abstract if it has one or more abstract methods in a file of the same name Java class particular low-level subsystems to hold features that will be inherited by two or more subclasses
class classname
{ // declarations of variables
// declarations of constructors (discussed below)
// declarations of other methods with public ones first
}
a special-purpose function such as the user interface for a particular system its own source file abstract method an implements clause to declare that it contains methods for each of the operations specified by the interface elements as follows:
class variables
instance variables
constructors
the most important public methods
methods that are simply used to access variables
private methods
only one superclass specifying the abstract keyword on the first line when you declare the class if related aspects of a system are kept together in this module, and unrelated aspects are kept out

Subject	lack	have	be	store	is a kind of	implement	have purpose	have form	perform	place in	has part	use	has definition	order	extend	create by	have high cohesion
abstract class		instances	the unit of data abstraction in an object-oriented program		class		to hold features that will be inherited by two or more subclasses				abstract method		A class that cannot have any instances
Java class	side effects if it does not modify any data, and does not leave behind any information, other than its result, that would have an effect on other computations	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash	abstract if it has one or more abstract methods	in a file of the same name	Java module	particular low-level subsystems		class classname { // declarations of variables // declarations of constructors (discussed below) // declarations of other methods with public ones first }	a special-purpose function such as the user interface for a particular system	its own source file	variables	an implements clause to declare that it contains methods for each of the operations specified by the interface		elements as follows: class variables instance variables constructors the most important public methods methods that are simply used to access variables private methods	only one superclass		if related aspects of a system are kept together in this module, and unrelated aspects are kept out
Java abstract class	side effects if it does not modify any data, and does not leave behind any information, other than its result, that would have an effect on other computations	one or more abstract methods	abstract if it has one or more abstract methods	in a file of the same name	Java class	particular low-level subsystems	to hold features that will be inherited by two or more subclasses	class classname { // declarations of variables // declarations of constructors (discussed below) // declarations of other methods with public ones first }	a special-purpose function such as the user interface for a particular system	its own source file	abstract method	an implements clause to declare that it contains methods for each of the operations specified by the interface		elements as follows: class variables instance variables constructors the most important public methods methods that are simply used to access variables private methods	only one superclass	specifying the abstract keyword on the first line when you declare the class	if related aspects of a system are kept together in this module, and unrelated aspects are kept out

Up: abstract class, Java class