This site contains free contents about the Java Language.  There are Java overview and tutorial, hints and tips, sample Java programs and example, certification questions with answers, FAQ, Java interview questions you can used for your Job interviews. 

• History of Java
• A Simple HelloWorld.java program
• Variable and Expressions
• String in Java
• Assertion in Java
• Benefits Or Advantages Of Java
• Basic Review of Java

• Input through Keyboard
• StackDemo shows how to use the linear set of objects
• Demonstrate Boolean Values
• The example draws several moving wadges on a circle
• A Java Calculator
• A Serializable JButton
• Some Java Samples Codes
• Cows and Bulls Game
• Simple Date Validation
• Simple Program for Reading Writing Content From File
• How to Make a Java Class Immutable
• How to Get the Start Date of the Week in Java
• Example Uses Of Calendar Class
• How to Upload a File and How to Store it
• Keeping a Standard Coding Template
• Random Sentence Generator
• How To Make http To https Request
• Reading The Hardware Address
• Telephone Format Validation Rule
• Coding For Playing A Wav File
• Viewing PDF File Using Java
• Coding Bubble Sort in Java
• Sorting Objects Using Collections Sort
• Coin Toss Programming Simulator
• Logic For Graphs using JFreeChart
• Control Structures with Example
• Program with Concept of Interface, Variables and Methods
• Program with Concept of Inheritance with Method Overriding
• Concept of Inheritance with Method Overriding
• Playing Quiz

• TicTacToe.java
• ANNPlayer.java
• NueralNet.java
• HumenPlayer.java
• MessageBox.java
• TurnDialog.java
• Applet1.java

• Modulus and OpEquals Example
• Changing Fahrenheit to Centigrade
• Class BRReadLines
• Testing class

• Code for Java-Mail
• How To Send Email Using Java Mail
• Java Codes To Send The Email Attachments

• Hide Password From Command Line
• User With Password Never Expires on MS-Adam
• Encryption And Decryption Algorithm

• Use XML in Java to Write Save Documents
• Hibernate To Represent The DB Data In XML
• Read and Write XML file
• JTree With Nodes From An XML File

• Introduction to Java Programming
• Data types,variables and Arrays
• Java Data Types Questions and Answers
• Operators available in Java
• Java Control Statements
• Introduction to Java Classes and Methods
• Java Packages and interface
• Java Exception Handling
• What is an Exception Handling?
• Checked and Unchecked Exceptions in Java
• Java Multi Threading
• Java Inheritance
• The Purpose of Try
• How To use getConnection
• Questions with Answers #1
• Questions with Answers #2
• Questions with Answers #3
• Questions with Answers #4
• Questions with Answers #5
• Questions with Answers #6
• Method of The String Class

• Coding Interview on Database - JDBC (java.sql) - One
• Coding Interview on Database - JDBC (java.sql) - Two
• The Types of JDBC Drivers
• Call Procedure In JDBC
• Creating Blob and Clob Data
• JDBC and Servlet FAQs
• Difference Between Database and Database Management System

• Java Tips
• Java Exam Notes
• Java 2.0 Notes
• Java Example Event Programming
• Points learnt from Java mock exams

• SCWCD Certification - Is It Worth Taking
• Java Programmer Certification Mock Exam No 1
• Mock Exam for Java 2 Programmer
• Sun Certified Programmer Practice Exam
• Sun Certified Programmer for the Java2 Platform
• Sun Certification for Java2 Programming
• Objective Type Of Questions and Answer For Java Certification
• Java Certification Model Question & Answer - 1
• Java Certification Model Question & Answer - 2
• Java Certification Model Question & Answer - 3
• Potential Trips/Traps in SCJP exam
• Java EE 5 Web Component Developer Certified Professional Exam #1
• Java EE 5 Web Component Developer Certified Professional Exam #2

• Self Testing Questions
• Braindumps Questions and Answers
• Java Basics Programmer Practice Test

• JDBC connection with MS SQL Server 2000
• Using Mysql in Database Connectivity in Java
• Fetch Records from Database after Selecting Dropdownlist

• Difference Between Comparable And Comparator Interface
• Strong and Weak Reference
• Thin vs Thick Clients
• Creating New, Extending class and Implementing interface
• ExecuteQuery(…), ExecuteUpdate(…) and Execute

• Library To Call Java From Perl

• How To Print Text File In Java
• Get Directory List From Server
• Create Executable Jar Files

• Update Table With Jtextfield Filtering

• Record in Maintable with Only INSERT Command

• Data Types That Can Be Used in a Switch Statement

• Preparation for Interview Tips
• Java Interview Questions
• Java and EJB - Interview Questions
• Interview Questions in Core Java - Part One
• Interview Questions in Core Java - Part Two
• Unique And Tough Interview Questions
• Difference Between Stack and Heap
• Short Java Programming Questions
• Java Developer Interview
• Java Questionnaire

• Interview Questions in Core Java 1
• Interview Questions in Core Java 2
• Java Technical Interview - Preparation Questions
• Job Interview Questions For Programmers #1
• Job Interview Questions For Programmers #2
• Career Interview Questions For Success
• Collections of Interview Questions
• Further Interview Questions on Java
• Important Servlet Questions
• What Are Enumeration and Iterator

• Download your FREE Java Codes eBook
• Download your FREE Java Exam Ques and Ans eBook
• Java Certification on Language Fundamentals Guide

• Object-Oriented Programming and Java
• Why OOPS Are More Popular
• OOPS In Java Questions
• Various Features of Object Oriented Programming Language

• Simple applet to add 2 integers
• Program calculate perimeter of square, rectangle and triangle
• Test the Class Shape
• Class to Output the Suit of a Pack of Cards
• Test class to test the workings of Card
• Program to create a safe with 4 digit codes
• Exercise to simulate a safe
• Program class to develop a time class
• Program to test the Time class
• Class Time And Class Try To Parse String
• Class read dates to determine if valid and produce outputs
• Test class to for newDate class
• Program to create a classic hangman game

• Java applet simulating flying through space
• Java applet simulating a typical radar screen
• Java application simulating an automatic bank teller machine

• Write a Method To Delete All Blanks
• Coding For Determining The Largest Number
• Even Numbers Example in Java
• Calculating The Business Hours

• Compile and Run a Java Program
• Java Arrays
• Java Binary Representation Of Integers
• Java Bitwise Logical Operators
• Java Bitwise Shift Operators
• Java if Statement
• Java switch Statement
• Java while Statement
• Java for Statement
• Java Boolean Logical Operators
• Introduction to Java Classes
• Introduction to Java Methods
• Inline - Java - Callback Description

• JavaScript Tutorial Index
• Prevent Resetting Countdown Timer On Page Refresh

• Query about JSP
• How to Connect Database Through JSP
• Exporting to Excel in JSP
• Write to Database or Read from Database via Web
• How do you pass parameters to a servlet from JSP
• Upload Files Using JSP and Servlet
• How to Pass Request Parameters
• How to Refer Current Page Content in JSP

• Design Patterns in Java
• Which Design Pattern Is Suitable

• What  is  Java  Arrays
• How to declare an array with array size dynamically
• Difference Between Stack and Heap
• Difference Between a Vector and an Array
• Sample Program That Uses  Array
• Use A Layout And Arrange Objects
• Dynamic Population Dropdownlistbox
• Object Arrays and Collections
• Collections Interview Questions And Answers
• For and Foreach Loop for Printing Values of an Array

• What is a Java Object

• Displaying Months
• Converting Numbers to Words
• Similarities and Differences Between Java and C++
• Calling Stored Procedure
• Encode Decode String Using Aes
• Static And Dynamic Polymorphism
• Loading An Elements From JAR
• Reverse A Singly Linked List
• Using The Scanner Class
• Hot Key Instead Of Key Listener
• Detect That JFrame Is Being Resized
• Displaying The Result in Frame
• PhantomReference and Finalization
• Method Local Inner Class
• Add Status Bar Msg In Applet
• Concept of Overloading

• Write a Program To Check Unique Number in Java
• Java applet displaying a bunch of numbers moving across the screen
• Method Of Comparing Two Numbers

• Frequently Asked Questions
• Programming Question
• Review Questions - For Revisions
• Important Questions To Learn
• Java, JDBC, Servelts AND JSP FAQs Part I
• Run Java Program Database On Another Computer

• Difference Between Good Programmer and Great Programmers

• Location Services API within an Activity

Oracle Database, SQL, Application, Programming Tips

Unix System Administration Hints and Tips

Linux Administration Hints and Tips

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