Java class Comparison Table

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Java class comparison table

Subject is an instance of is a subtopic of create by access from see also has part create using inherit contain have purpose correspond to deal with put into have example of accepting a connection throw if have access to is a kind of allow for relate to have example of listening use have has definition have example of connecting

Calendar class Java class 7.5 - Usability Principles class^2 variables data associated with each object the use of calendars of specific cultures an implements clause to declare that it contains methods for each of the operations specified by the interface a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash

Exception class Java class The Basics of Java exception variables data associated with each object an implements clause to declare that it contains methods for each of the operations specified by the interface a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash

IOException Java class 3.5 - Technology Needed to Build Client-Server Systems class^2 variables data associated with each object communication in a client server system fails an implements clause to declare that it contains methods for each of the operations specified by the interface a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash

Java abstract class The Basics of Java specifying the abstract keyword on the first line when you declare the class class^2 abstract method data associated with each object to hold features that will be inherited by two or more subclasses Java class an implements clause to declare that it contains methods for each of the operations specified by the interface one or more abstract methods

Java class in a package The Basics of Java class^2 variables data associated with each object a directory with the same name as the package Java class an implements clause to declare that it contains methods for each of the operations specified by the interface a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash

Java class that implements an interface The Basics of Java class^2 variables data associated with each object Java class other classes that implement the same interface in any other way an implements clause to declare that it contains methods for each of the operations specified by the interface a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash

Java class that imports a package The Basics of Java class^2 variables data associated with each object methods and variables in the imported package that are not declared public Java class an implements clause to declare that it contains methods for each of the operations specified by the interface a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash

Java collection class The Basics of Java class^2 iterator method data associated with each object working with collections of objects Java class iterator methods for doing something with every member of the collection a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash

Java public class The Basics of Java outside its package class^2 variables data associated with each object Java class an implements clause to declare that it contains methods for each of the operations specified by the interface a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash

Java subclass The Basics of Java class^2 variables the extends keyword all instance variables and methods defined in its ancestor classes data associated with each object subclass an implements clause to declare that it contains methods for each of the operations specified by the interface a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash

Java wrapper class The Basics of Java Java instance of wrapper class variables useful class methods to allow you to do something with primitive values beyond what the basic operators can accomplish Java primitive data type Java class an implements clause to declare that it contains methods for each of the operations specified by the interface a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash

Locale class Java class 7.5 - Usability Principles class^2 variables data associated with each object to format numbers a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash

ServerSocket class Java class 3.5 - Technology Needed to Build Client-Server Systems server socket variables data associated with each object to allow a server to listen to a port the server must have a thread constantly listening for connections using a statement like the following, embedded in a loop:
Socket clientSocket = serverSocket.accept();
The above statement will wait indefinitely in the accept method until a client tries to connect, then it will try to create an instance of Socket class to handle the new connection. If this is successful both client and server now have instances of Socket class and can communicate freely with each other. ServerSocket serverSocket = new ServerSocket(port);
where port is the integer representing the port number on which the server should be listening an implements clause to declare that it contains methods for each of the operations specified by the interface a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash Socket clientSocket= new Socket(host, port);

Socket class Java class 3.5 - Technology Needed to Build Client-Server Systems socket variables data associated with each object to encapsulate information concerning TCP/IP connections between applications an implements clause to declare that it contains methods for each of the operations specified by the interface a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash

stream class 3.5 - Technology Needed to Build Client-Server Systems class^2 variables data associated with each object Java class an implements clause to declare that it contains methods for each of the operations specified by the interface a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash

Thread class Java class The Basics of Java class^2 variables data associated with each object an implements clause to declare that it contains methods for each of the operations specified by the interface a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash A Java class that implements the general concept of a thread

TimeZone class Java class 7.5 - Usability Principles time zone variables data associated with each object the difference between Universal Time Coordinated (UTC or GMT) and local time an implements clause to declare that it contains methods for each of the operations specified by the interface a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash

Next class: role^2 Up: class, Java module Previous class: heavyweight class

Subject	is an instance of	is a subtopic of	create by	access from	see also	has part	create using	inherit	contain	have purpose	correspond to	deal with	put into	have example of accepting a connection	throw if	have access to	is a kind of	allow for	relate to	have example of listening	use	have	has definition	have example of connecting
Calendar class	Java class	7.5 - Usability Principles			class^2	variables			data associated with each object									the use of calendars of specific cultures			an implements clause to declare that it contains methods for each of the operations specified by the interface	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash
Exception class	Java class	The Basics of Java			exception	variables			data associated with each object												an implements clause to declare that it contains methods for each of the operations specified by the interface	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash
IOException	Java class	3.5 - Technology Needed to Build Client-Server Systems			class^2	variables			data associated with each object						communication in a client server system fails						an implements clause to declare that it contains methods for each of the operations specified by the interface	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash
Java abstract class		The Basics of Java	specifying the abstract keyword on the first line when you declare the class		class^2	abstract method			data associated with each object	to hold features that will be inherited by two or more subclasses							Java class				an implements clause to declare that it contains methods for each of the operations specified by the interface	one or more abstract methods
Java class in a package		The Basics of Java			class^2	variables			data associated with each object				a directory with the same name as the package				Java class				an implements clause to declare that it contains methods for each of the operations specified by the interface	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash
Java class that implements an interface		The Basics of Java			class^2	variables			data associated with each object								Java class		other classes that implement the same interface in any other way		an implements clause to declare that it contains methods for each of the operations specified by the interface	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash
Java class that imports a package		The Basics of Java			class^2	variables			data associated with each object							methods and variables in the imported package that are not declared public	Java class				an implements clause to declare that it contains methods for each of the operations specified by the interface	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash
Java collection class		The Basics of Java			class^2	iterator method			data associated with each object	working with collections of objects							Java class				iterator methods for doing something with every member of the collection	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash
Java public class		The Basics of Java		outside its package	class^2	variables			data associated with each object								Java class				an implements clause to declare that it contains methods for each of the operations specified by the interface	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash
Java subclass		The Basics of Java			class^2	variables	the extends keyword	all instance variables and methods defined in its ancestor classes	data associated with each object								subclass				an implements clause to declare that it contains methods for each of the operations specified by the interface	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash
Java wrapper class		The Basics of Java			Java instance of wrapper class	variables			useful class methods	to allow you to do something with primitive values beyond what the basic operators can accomplish	Java primitive data type						Java class				an implements clause to declare that it contains methods for each of the operations specified by the interface	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash
Locale class	Java class	7.5 - Usability Principles			class^2	variables			data associated with each object												to format numbers	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash
ServerSocket class	Java class	3.5 - Technology Needed to Build Client-Server Systems			server socket	variables			data associated with each object	to allow a server to listen to a port				the server must have a thread constantly listening for connections using a statement like the following, embedded in a loop: Socket clientSocket = serverSocket.accept(); The above statement will wait indefinitely in the accept method until a client tries to connect, then it will try to create an instance of Socket class to handle the new connection. If this is successful both client and server now have instances of Socket class and can communicate freely with each other.						ServerSocket serverSocket = new ServerSocket(port); where port is the integer representing the port number on which the server should be listening	an implements clause to declare that it contains methods for each of the operations specified by the interface	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash		Socket clientSocket= new Socket(host, port);
Socket class	Java class	3.5 - Technology Needed to Build Client-Server Systems			socket	variables			data associated with each object	to encapsulate information concerning TCP/IP connections between applications											an implements clause to declare that it contains methods for each of the operations specified by the interface	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash
stream class		3.5 - Technology Needed to Build Client-Server Systems			class^2	variables			data associated with each object								Java class				an implements clause to declare that it contains methods for each of the operations specified by the interface	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash
Thread class	Java class	The Basics of Java			class^2	variables			data associated with each object												an implements clause to declare that it contains methods for each of the operations specified by the interface	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash	A Java class that implements the general concept of a thread
TimeZone class	Java class	7.5 - Usability Principles			time zone	variables			data associated with each object			the difference between Universal Time Coordinated (UTC or GMT) and local time									an implements clause to declare that it contains methods for each of the operations specified by the interface	a unique name since somebody in the future might want to import the packages containing both classes and hence create a name clash