新手推荐：Java源代码示例网站

 

Arrays
	Extend the size of an array
	How to copy an array
	Using the Comparable interface to compare and sort objects
	How to sort an array

Collections
	Using a Set (or HashSet)
	Using a Queue (or LinkedList)
	Using a Stack
	Remove duplicate items from an ArrayList
	Looping through a Collection object
	View more...

Compression
	Extract contents of a zip file
	How to list the contents of a zip file
	How to create a zip file

Database
	Connect to database and call stored procedure
	Using a database transaction with JDBC
	Connecting to a Database - Step by Step
	Connect to a database and read from table

Datatype conversions
	Convert byte[ ] array to String
	Convert String to byte array
	Convert String to Boolean
	Convert Boolean to String
	Convert byte to String
	View more...

File I/O
	Read Input From User and Write to File
	How to rename a file (change file name)
	Remove a line from a text file
	Loading configuration parameters from textfile into a program
	Writing objects to file with ObjectOutputStream
	View more...

Graphics Java 2D
	Drawing a Ractangle with rounded corners using Java 2D Graphics API
	Drawing a Ractangle using Java 2D Graphics API
	Drawing a Line using Java 2D Graphics API
	Drawing a String using Java 2D Graphics API

Java Language Fundamentals
	Convert Characters to Lower Case
	Convert Characters to Upper Case
	Replace Characters in a String
	Getting a substring from a String
	Check if String Contains another String
	View more...

Networking
	Sending a POST Request with Parameters From a Java Class
	Downloading a web page using URL and URLConnection classes
	Perform NSLookup with the InetAddress class

Reflection
	Instantiate unknown class at runtime and call the object's methods
	List methods of a class using Reflection
	Invoke methods of an object using reflection

Servlets
	Redirect Servlet Call to Another URL
	Forward Call from a Servlet
	Get Users IP Address
	Get and Set Session Variables in a Servlet
	Get Request Parameters in a Servlet

Small programs
	How to find and calculate prime numbers

Swing
	Show a message dialog with JOptionPane
	Set Look and Feel for a Swing application
	JLabel with more than one row

Threads
	Setting thread priorities
	How to create a thread

Web Services
	Using a Message Handler to alter the SOAP Header in a Web Service Client
	Create a Web Service Client with JAX-WS
	Create a simple Web Service

 

Tutorials
	Java Language Tutorial     更多访问：http://www.javadb.com/