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Background Preface Programs Files and Directories CLASSPATH Directories and Files Packages - Importing Packages - Defining Using other packages NoSuchMethodError main Garbage Collection Links My Favorite Books Java Tools Tools Java Development Kit Programming IDEs NetBeans NetBeans GUI Projects NetBeans Code Snippets Text Editors TextPad Editor Ant Checkers Deployment Applications, Applets, etc. Intro GUI - Swing vs. AWT Strengths Weaknesses History of Java Java Virtual Machine Java vs. C Applications - example Compiling a Java program Applets Principles and practices Style Coding guidelines - summary Readability Names --> Cohesion Design By Contract Process - Iterative Development Process Iterative/Incremental Dev Start with working pgm Errors and debugging Fail Early, Fail Often Error Processing Debugging Output OO Design Frameworks Complexity Complexity is your enemy Complexity Measurement Method Cyclomatic Complexity Function Point Analysis FPA Introduction Summaries Data summaries Summary - Data Summary - Expressions Summary - String Summary - Character Summary - StringBuilder etc Summary - Arrays 1 Summary - Arrays 2 GUI summaries Summary - GUI Components Summary - GUI Containers Summary - GUI Layouts 1 Summary - GUI Layouts 2 Summary - Graphics Misc summaries Summary - Intro Programming Summary - Basic Elements Summary - Control Flow Summary - Packages Classes, Interfaces --> I/O --> Summary - Scanner Summary - Math class Summary - Random numbers DOS Commands Introductory Example Programs Overview of Intro Programs Do nothing! First Program - Do Nothing Output only Console: Hello Earthling Dialog: Hello Earthling Input - Output Example: Console: To your leader Example: Dialog: To your leader Example: Console: Capitalize Example: Dialog: Capitalize Ex: Console: Kilometers to Miles Ex: Dialog: Kilometers to Miles Ex: Dialog: Km to Miles - Format Loop (Input, Calculate, Output) Example: Console: Adding Machine Example: Console: Max, min, avg Example: Dialog: Adding Machine Example: Dialog: Longest Word Example: Dialog: Bad Words Programming Problems Body Mass Index - Dialog Count Words - Dialog Methods Ex: Dialog: Km to Miles - Method Ex: Dialog: Input Range Method Try...Catch Ex: Dialog: Km to Miles - Try-Catch Example GUI Programs Basic_windows About Examples Separating UI from Logic Example - First Window Example - Second Window Example - Generic Calc Example - Generic Main Example - Generic Applet --> Components Example - ToUppercase Example - CombineName Example - Body Mass Index Example - Sleepy Face Example - Calculator Example - Simple editor Example - Roman numerals Graphics Example - Drawing a Face Example - BullseyeDemo Example - Roll Dice Example - ColorDisplay Example - Circles Animation Example - Bouncing Ball TextClock Example - Text Clock Example - Text Clock 2 Example - Extend Clock Example - Buffered Clock Mouse Example - MouseTest Example - DragDemo Example - Card Demo Example - PaintDemo Example - Raise Games Example - FreeCell Example - Slide Puzzle Example - Five-in-a-row Example - Sudoku v3 Collections Example - WordFrequency

Language Basics Comments Identifier Names import Final Control Flow If if Statement - Overview Else not Required Braces are your friend 'if' Statement - Indentation 'if' Statement - if inside if 'if' Statement - 'else if' style switch switch Statement - Overview switch Example - Random Insults Loops Loops - Introduction While Statement For Statement "Foreach" Statement Ex: String reverse Assertions Assertions Exceptions Exceptions Exception Usage Exceptions - More Throwing Exceptions Methods See Java Basics Methods - Example Static methods Example methods and loops Classes See Java Basics Overview OOP Terminology Constructors Constructors Constructors - super Constructors - super example Exercise: Constructor Chaining Interfaces Interfaces Example - Handyperson Reflection / Introspection Class class Enums Enums IO File IO java.io.File File I/O - Text Files Sys Independent Newline BufferedReader/Writer File Filters javax.swing.filechooser.FileFilter java.io.FileFilter Examples Example - FileTest Example - ReadWords Example - NanoEdit Example - Recursive List Console (System.in / System.out) Console I/O Console-Dialog Comparison Dialog (JOptionPane) Dialog Box Input Loop Internet Read page from Web server Formatted Output Formatted Output Properties and Preferences Preferences Properties System Properties JDBC Database Engines Algorithms Big-Oh Notation Big-Oh Notation Comparing Comparators Copying Deep vs Shallow Copies clone() Searching Search/Sort Overview Collections Class Linear search Binary search Recursive binary search Sorting Selection Sort Bubble Sorts Sorting Arrays Random numbers Random numbers - intro Random numbers - API Shuffling Math Math and java.util.Random Other Time Various time classes javax.swing.Timer java.util.Calendar Sound Beep Audio Memory OutOfMemoryError

Data Basic Types Numbers Integers Floating-point Characters Unicode Summary - Character Boolean Autoboxing Variables Variables Local/Instance/Class Shadow variables are evil Shadowing this Expressions Expressions Precedence Assignment Extended Assigment Ops Comparison Comparison Operators ==, .equals(), and compareTo() Bit operations Bitwise operations Numbers java.math.BigInteger Example - Factorial Strings String Overview String Comparison Summary pages Summary - String Summary - StringBuilder Conversion Converting Numbers to String Converting Anything to String Converting Strings to Numbers Regular_expressions Regular Expressions String Regex Methods Basic regex summary Pattern and Matcher Regex Language Regex Examples Full regex summary Regex Literal Characters --> StringTokenizer java.util.StringTokenizer Tokenizing Delimiters TokenizeExpr.java String Examples Example - Display Extension Example - Change Extension Example - Count occurences Example - Count vowels Example - Palindrome test Example - Replace word Example - SortWords3.java Example - Array to String Example - String to "tokens" Arrays Arrays Array library methods Examples Example: Reverse an array Example: Maximum of array Example: Average of array Examples: Sorting Arrays - 2-dimensional Arrays of arrays Arrays - more Collections - Generic Java Data Structures Collections Overview Collection Interface Lists ArrayList<E> Example - Alphabetize Vector<E> Simple Linked Lists Deques ArrayDeque<E> Sets Set<E> interface Maps Map<K, V> interface Map iteration Example - WordFrequency Programming - WordFrequency --> Iterators Iterators Other Class or Interface Generics Alternative Data Structures Exercises Exercise - Unique Components Exercise - State Capitals

GUI See Java Basics Basics GUI Tips GUI Structural Patterns Summaries Summary - Basic Components Summary - Containers Summary - Layouts Events and Listeners Events - Introduction Listeners Inner-class Listeners Anonymous Listeners Top-level Listeners Action, AbstractAction Components Components Introduction to Components Where to declare components Intro to components Buttons Text JLabel Buttons JButton JButton Appearance Buttons with Icons Textfield JTextField Textarea JTextArea Example - JTextArea Radio buttons Radio Buttons Checkboxes JCheckBox Sliders Sliders Change Listener Combobox JComboBox (uneditable) Menus JMenuBar, JMenu, ... Containers Containers Windows JFrame - Window JFrame Close Box Window Size and Position Content Panes Dialogs Dialogs JOptionPane - Simple JOptionPane.showConfirmDialog JFileChooser FileFilter Panels JPanel - Container JTabbedPane Layouts Layouts FlowLayout BorderLayout GridLayout BoxLayout and Boxes BoxLayout spacing BoxLayout alignment GridBagLayout Example: GridBagLayout Null Layout Alternate Layout Managers GUI Program Structure Big Blob Structure UI-Model Structure UI-Model Communication MVC - Model View Controller MVC with less coupling --> Misc Cursor GUI Alternatives GUI - Appearance Fonts Font class FontMetrics Centering Text Example - FontDemo Borders Borders Border Example Look and Feel Look and Feel GUI - Low level Graphics Summary: Graphics drawing Drawing Screen Coordinates Graphics class Who calls paintComponent Color Polygons Summary: Drawing component JPanel - Drawing Area JPanel - Drawing Area 2 JPanel - Example Images - BufferedImage Images - ImageIcon Graphics2D Graphics2D Antialiasing Mouse The Mouse MouseListener MouseMotionListener Mouse Listeners Mouse Buttons, Modifier Keys Keyboard Keyboard Example - KeyDemo

Acknowledgements.

I didn't know this website. It stores a lot of academic video lessons recorded in top universities around the world such as Berkley, MIT, Stanford, etc ..

If you miss studying, let's have a look into it !

Using MacPorts To Install Ruby 1.9.1 and Rails 2.3.0 RC1

As usually. It took some seconds to me to realize what it really was :) But you make it as soon as the man showing the "gmail gestures" starts moving ... And don't forget to click on the try button, on the right side :P

creepy is an application that allows you to gather geolocation related information about users from social networking platforms and image hosting services. The information is presented in a map inside the application where all the retrieved data is shown accompanied with relevant information (i.e. what was posted from that specific location) to provide context to the presentation.

F.A.Q.

Please read through the FAQ :)

Screenshots

James Gosling, the notable programmer who founded Java at Sun Microsystems, has joined Google, a company locked in a lawsuit over how the technology is used in Android.

Gosling announced his new Google employment today on his blog. "I don't know what I'll be working on. I expect it'll be a bit of everything, seasoned with a large dose of grumpy curmudgeon," he said.

Drinking water (tap water) in Tokyo

Contamination of tap water (until March 27) Radioactive contamination of drinking water in Tokyo (Iodine) Analysis of tap water in Tokyo can be found here for each day starting with March 18. This analysis shows that Tokyo tap water currently contains some radioactive Iodine (I-131), and some Cesium (CS-134 and Cs-137) radioactive isotopes. Interesting in this context is that according to a  WHO report on Japan of March 22 (pdf-file), Japanese health limits for radioactive Iodine are about 10 times lower than global standards, ie if Japanese health limits are exceeded, the levels are still at 10% of global limits (we don't intend to underestimate this problem however). We conclude that currently radioactive Iodine (I-131) concentrations are about 7% of Japan's limits set by Japan's Nuclear Safety Commission, and about 0.7% of international health limits, and are currently on a downward trend. According to US Ambassador Roos, US Government experts are currently analyzing the Tokyo tap water situation and will report on their findings shortly.

Contamination of tap water with Cesium (until March 27) Radioactive contamination of drinking water (Cesium):  Cesium contamination with radioactive Cs-134 (1/2-life = 2.1 years) and Cs-137 (1/2-life = 30 years) isotopes is currently on the order of 0.2% and 0.4% of the limits set by Japan's Nuclear Safety Commission and are on a downward trend. The relatively long 1/2-life of Cesium-134 and Cesium-137 means that these radioactive isotopes will stay with us for many years. To understand this situation it is necessary to compare these levels with natural levels, and with other sources of radioactivity, and how Cesium interacts with our bodies.

Where to find radiation measurement results (updated March 28, 2011): Japan's Government AIST laboratory: http://www.aist.go.jp/taisaku/ja/measurement/index.html  Japan's Science and Education Ministry MEXT publishes regional radiation data: http://www.mext.go.jp/a_menu/saigaijohou/index.htm http://www.mext.go.jp/english/radioactivity_level/ These data are graphically shown here: Radiation: http://atmc.jp/ Drinking water: http://atmc.jp/water/ Rain water: http://atmc.jp/ame/ Radiation data for Tokyo/Shinjuku are published here: each hour for the last 24 hours  for each day starting March 1

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Jon Bruner: On all your titles you've dropped digital-rights management (DRM), which limits file sharing and copying. Aren't you worried about piracy?

Tim O'Reilly: No. And so what? Let's say my goal is to sell 10,000 copies of something. And let's say that if by putting DRM in it I sell 10,000 copies and I make my money, and if by having no DRM 100,000 copies go into circulation and I still sell 10,000 copies. Which of those is the better outcome? I think having 100,000 in circulation and selling 10,000 is way better than having just the 10,000 that are paid for and nobody else benefits.

People who don't pay you generally wouldn't have paid you anyway. We're delighted when people who can't afford our books don't pay us for them, if they go out and do something useful with that information.

I think having faith in that basic logic of the market is important. Besides, DRM interferes with the user experience. It makes it much harder to have people adopt your product.

I have to admit I've never heard of it before .. shame on me !!

AMAZING photos from the last saturday night: http://tinyurl.com/5wf25zv.

in Como, Italy, was cloudy and I couldn't see anything. A spacial event happening every 20 years, and in Como was cloudy ..