Core Java Interview Questions
2015-04-03 17:38:00 Every year many thousand technocrats choose Java careers across the globe,after formally taking Java training classes,courses and/or Java certifications like SCJP etc.While appearing for technical interviews,these budding Java programmers face variety of technical questions, are asked to write code snippets to prove their mettle in relevant topics of Java.They are not only assessed on language basics but also on their familiarity with Java development tools, optimization of Java code,load tests,securing code through Java obfuscation and more. It is their performance in these interviews which decides their career fate and is highly dependent on to-the-point and not too verbose answers.What prompted me to create a blog on frequently asked and and not so frequently asked tricky Java interview questions? The answer is,as I have been through various technical interviews on Java and related technologies for all my career spent with this fascinating technology so I thought of sharing these...
Java EE Interview Questions
2015-04-02 12:00:00 I hope my post on Java Interview Questions will be doing some good to all my targeted audience on Core Java and in this blog, I have essentially focussed on interview questions in several Java EE technologies(erstwhile J2EE).Apart from Java EE, I will also be covering interview questions on most widely used open source technologies like Struts,Hibernate,Spring and Velocity and more.I have constantly been asked by my readers to put something on personal interview questions, consequently, you may like to read my post on personal interview questions prior talking about Java Enterprise Edition.Sun Microsystems introduced Java EE 5 specification under JSR 244 and the final release was made public on May ,2006.Java EE has become a cornerstone technology for enterprise level web based solution development.It has more than three million downloads and more than twenty six vendors' application servers support this specification.I believe,it is significant to go through an introduction of Ja...
Data Encryption Decryption using AES Algorithm, Key and Salt with Java Cryp
2009-10-07 17:51:00 In this tutorial we will implement a full data encryption decryption cycle with Java (only data, not file encryption); encrypt some data using a secret key, salt and iterations and decrypt using the same parameters. We are using the Java Cryptography Extension (JCE) for data encryption/decryption...
Excellence Java Pixie
2009-09-23 15:43:00 Excellence Java Pixie is a program that contain 100+ JavaScripts, that can be easily customized for your webpage.
Updated: See how I used Firebug to learn jQuery
2009-09-21 07:44:00 It was great to see all the positive responses to the screencast I recently recorded with Craig Shoemaker on how to use Firebug?s console to learn jQuery. That being my first screencast, I really appreciate all of your support. However, you almost unanimously commented that it was too difficult to read the commands typed at the ...### Originally posted at Encosia. If you're reading this elsewhere, come on over and see the original.Updated: See how I used Firebug to learn jQuery
By: Dave Ward's Blog
See how I used Firebug to learn jQuery
2009-08-10 17:42:00 UPDATE: We’ve recorded a higher quality version of this screencast. When I hear that someone?s having trouble learning JavaScript or jQuery, my first suggestion to them is always the same: install Firebug and experiment at the console. Whether you?re an experienced JavaScript developer or haven?t written a single line of client-side code, the interactive nature of ...### Originally posted at Encosia. If you're reading this elsewhere, come on over and see the original.See how I used Firebug to learn jQuery
By: Dave Ward's Blog
SpreadsheetConverter to Java/JSP Std Ed
2009-08-10 11:01:00 Click to enlarge SpreadsheetConverter to Java/JSP Std Ed 4.6.0 Good-looking calculating JSP-page from Excel. Separate JavaBean with full source. 165 Excel-functions supported. No Excel needed on server. No Excel needed for the users of the JSP-pages. Use it for expense report, survey, order forms, reservation forms, employment application, financial advisor, ROI-calculator, engineering. No Risk! 30 ...
Get early access to ASP.NET AJAX in Action, Second Edition
2009-08-05 15:17:00 If you?ve been reading long, you might remember that I?ve been a fan of ASP.NET AJAX in Action since the original was published. By avoiding heavy reliance on drag ?n drop methodologies, the Manning book leaves readers with a deeper understanding of the framework. Without understanding the underlying mechanisms well, developing successful solutions is as much ...### Originally posted at Encosia. If you're reading this elsewhere, come on over and see the original.Get early access to ASP.NET AJAX in Action, Second Edition
By: Dave Ward's Blog
[Ant] Build .WAR files in Eclipse for Web Applications
2009-07-28 15:17:00 Eclipse JEE versions support Java Web Application projects, but other Eclipse versions do not. Java developers need to build WAR (web archive) files for deployments (yes, Exploded deployments are also possible). However Eclipse does not provide a direct way to create war files; developers write ant...
Simplify calling ASP.NET AJAX services from jQuery
2009-07-21 19:11:00 As jQuery?s popularity in the .NET community has risen over the past year, one recurring theme I?ve seen is the desire to refactor away the details of using it to call ASP.NET AJAX services. Whether through helper function or specialized jQuery plugin, I?ve seen numerous methods proposed and/or in use. Personally, the syntax never bothered me. ...### Originally posted at Encosia. If you're reading this elsewhere, come on over and see the original.Simplify calling ASP.NET AJAX services from jQuery
By: Dave Ward's Blog
Paul Gilbert: java rock land
2009-07-10 21:38:00 Hey Jenn gave a new lick of paint to her blog http://metalichicka.wordpress.c-om/ In here latest post Mr. Big, the American rock band, will appear at Java Rocking Land at Carnaval Beach, Jakarta, Indonesia, on August 8, 2009. full details This is a content summary only. Visit Truth In Shredding to find out more!
[Tomcat] validateJarFile(servlet-api.jar) - jar not loaded. Offending class
2009-07-09 15:28:00 org.apache.catalina.loader.Weba-ppClassLoader validateJarFile INFO: validateJarFile(<APP_PATH>-;WEB-INFlibservlet-api.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class. We are using Apache Tomcat to deploy web applications, and getting...
Improving jQuery?s JSON performance and security
2009-07-07 15:00:00 When you?re working with JSON, performance and security are often opposing, yet equally important concerns. One of these areas of contention is handling the JSON strings returned by a server. Most JavaScript libraries do a great job of abstracting away the details, but the underlying process has long been a frustrating exercise in compromise. On one ...### Originally posted at Encosia. If you're reading this elsewhere, come on over and see the original.Improving jQuery?s JSON performance and security
By: Dave Ward's Blog
Never worry about ASP.NET AJAX?s .d again
2009-06-29 07:00:00 When I recently received this message from a frustrated reader: After hours and hours of slamming my head into the desk it turns out it was the darn "d" in the response. My home computer is on .NET 2.0 and my work computer is on 3.5. Jimminie Christmas! I realized that the ?.d? introduced in ASP.NET AJAX ...### Originally posted at Encosia. If you're reading this elsewhere, come on over and see the original.Never worry about ASP.NET AJAX’s .d again
By: Dave Ward's Blog
Hear me talk about jQuery on the Polymorphic Podcast
2009-06-20 19:12:00 As a longtime listener myself, I was eager when Craig asked me to come on the Polymorphic Podcast to talk about jQuery. I?ve always enjoyed how he doesn?t shy away from talking about HTML and JavaScript, which is still too uncommon in the .NET world. With that in mind, I knew we?d be able to have ...### Originally posted at Encosia. If you're reading this elsewhere, come on over and see the original.Hear me talk about jQuery on the Polymorphic Podcast
By: Dave Ward's Blog
AdaptAir - Mobile Java Producer
2009-06-20 11:08:00 Click to enlarge AdaptAir - Mobile Java Producer 1.1.0.36 AdaptAir is PC/Windows software for mobile publishing. With AdaptAir you can compose and create Java ME content (MIDlets) from wide range of file formats (text and images) and/or from the internet links, WITHOUT any programming. Creating mobile Java midlets with AdaptAir is as simple ...
Active Query Builder Java Edition
2009-06-12 11:13:00 Click to enlarge Active Query Builder Java Edition 1.0.5 Active Query Builder Java Edition is a visual component for Java environment to allow your end users to build complex SQL queries visually via user-friendly graphical interface easily. Active Query Builder renders all SQL features, such as sub-queries and unions, very easy to accomplish ...
Active Query Builder Java Edition
2009-06-12 10:57:00 Click to enlarge Active Query Builder Java Edition 1.0.5 Active Query Builder Java Edition is a visual component for Java environment to allow your end users to build complex SQL queries visually via user-friendly graphical interface easily. Active Query Builder renders all SQL features, such as sub-queries and unions, very easy to accomplish ...
11 keystrokes that made my jQuery selector run 10x faster
2009-06-09 20:45:00 As an ASP.NET developer working on the client-side, one problem you?ll encounter is how to reference the HTML elements that ASP.NET web controls generate. All too often, you find yourself wasting time trying to reference TextBox1, when the element is actually rendered as ctl00_panel1_wizard1_TextBox1.- Much has been written about this, including a post of my own, ...### Originally posted at Encosia. If you're reading this elsewhere, come on over and see the original.11 keystrokes that made my jQuery selector run 10x faster
By: Dave Ward's Blog
Java Photo upload by friends21
2009-06-06 10:04:00 1. We need a Java photo uploader script. Identical to the facebook, myspace, bebo photo uploader. example: http://demo.aurigma.com/ImageUp-loader6/OptimizedUpload/default-.aspx (mirror this) 2... (Budget: $30-250, Jobs: Java, Linux, PHP)
Email Templates - HTML, JAVA, Flash by tjkoxlien
2009-06-04 23:03:00 We need help building some templates for an email campaign for new products. We need awesome graphics and decent copywrighting. (Budget: $30-250, Jobs: Copywriting, Flash, Graphic Design, Java)
Generate Javadoc using Eclipse
2009-05-22 03:22:00 If your java project is getting bigger then it is good idea to create Javadoc of the project. So that it gets easy to understand the class and method usage. Follow the instruction shown below to create Javadoc for your project. 1. You can use the following comment style used in eclipse while generating Javadoc. /****Javadoc comment** */ 2. Click ...
By: Onecore
Sun To Build World's Biggest App Store Around Java
2009-05-21 15:49:00 From Slashdot: Sun Micro plans to launch an App Store that could make Apple's look smaller than a 7-Eleven by comparison, CEO Jonathan Schwartz wrote on his blog this week. Schwartz indicated the Java App Store, code-named Project Vector, will focus on PC users and estimated the si
Understanding Java Codebase - Network Simulator by JeremyJ
2009-05-21 09:15:00 I need some assistance from a strong Java programmer who is good at understanding foreign code and explaining it to someone else. You need to be familar with network programming and simulators and/or Discrete Event Simulators... (Budget: $30-250, Jobs: Java, Wireless)
Automatically minify and combine JavaScript in Visual Studio
2009-05-20 19:42:00 As you begin developing more complex client-side functionality, managing the size and shape of your JavaScript includes becomes a key concern. It?s all too easy to accidentally end up with hundreds of kilobytes of JavaScript spread across many separate HTTP requests, significantly slowing down your initial page loads. To combat this, it?s important to combine and ...### Originally posted at Encosia. If you're reading this elsewhere, come on over and see the original.Automatically minify and combine JavaScript in Visual Studio
By: Dave Ward's Blog
Locale
2009-05-20 02:08:00 Sometimes the question is asked to students that ?What is locale?? during interviews. Let?s talk about it in this post. As per Wikipedia : In computing, locale is a set of parameters that defines the user’s language, country and any special variant preferences that the user wants to see in their user interface. Usually a locale ...
By: Onecore
What ASP.NET developers should know about jQuery
2009-05-13 19:10:00 As much as I enjoyed attending MIX09 this year, it wasn?t a difficult decision when Karsten asked me to write an article for the MIX Online site. Reading this here, there?s a good chance the article is targeted below the amount of jQuery expertise you already have. However, it?s been brought to my attention that some ...### Originally posted at Encosia. If you're reading this elsewhere, come on over and see the original.What ASP.NET developers should know about jQuery
By: Dave Ward's Blog
Font Encoder Tool Update: Linear Java Encoder
2009-05-13 17:09:00 Updates to the Linear Java Encoder include enhancing the Expanded GS1 Databar symbology encoding.The Java Barcode Font Encoder Class Library is used to format linear barcode fonts before printing. This product is royalty-free with the purchase of a license to one of IDAutomation's Barcode Fonts. The library also includes source code (for some methods) that may be used to generate barcodes with barcode fonts from a java application.
Processing Mobile Edition
2009-05-05 17:06:00 We already discussed about possibility of graphics and visualization using processing. There is separate edition of processing for mobile visualization, if you want to develop sketches for mobiles. Mobile version shares most of the features from processing. So you still need processing documentation for most of the graphics function. If you?re new to processing environment ...
By: Onecore
How I handle JSON dates returned by ASP.NET AJAX
2009-04-27 17:22:00 The problem of how to handle dates in JSON is one of the more troublesome issues that may arise when directly calling ASP.NET AJAX web services and page methods. Unlike every other data type in the language, JavaScript offers no declarative method for expressing a Date. Consequently, embedding them within JSON requires a bit of fancy ...### Originally posted at Encosia. If you're reading this elsewhere, come on over and see the original.How I handle JSON dates returned by ASP.NET AJAX
By: Dave Ward's Blog
Install Java and XVFB on linux command line by zimma
2009-04-26 12:36:00 I have a VPS running linux with ssh access to the command line. I need to be able to run a java program that requires Java, Xvfb and the relevant packages and fonts for it to work to be installed. ... (Budget: $30-250, Jobs: Linux)
Determine Java Runtime Environment Version
2009-04-25 13:26:00 A few days ago I was asked for a quick and easy way to determine what java runtime environment version was installed via the Unix command line. The requester was trying to determine possible compatibility issues for some recently purchased applications. Â Bear in mind that you may have multiple JRE environments installed on your box so consider the PATH value -- meaning you might have to specify an absolute path. e.g. /usr/some_java_version/bin/java-Here is the Unix one-liner syntax using default path% java -versionjava version "1.x.x_xx)...By the way, it is the same syntax for Windows.C:Usersmysysad> java -versionjava version "1.x.0_xx"Java(TM) SE Runtime Environment (build 1.x.0_xx-xxx)Java HotSpot(TM) Client VM (build xx.3-bxx, mixed mode, sharing)
By: My SysAd Blog
Easy JAVA to Source Converter
2009-04-25 10:59:00 Click to enlarge Easy JAVA to Source Converter 2.1 Easy JAVA to Source Converter is a powerful decompiler and disassembler for Java that reconstructs the original source code from the compiled binary CLASS files. It is able to decompile complex Java applets and binaries, producing accurate source code. Useful for developers to recover their ...
Java programmer for multiple task
2009-04-16 14:51:00 Looking for freelance java programmer for our current project, this is freelance opportunity for professional java programmer. We will give different kind of task in java programming. The service provider should be very strong in java script, servle, ejb, jsp struts. Should have experience in java programming and indivual project handling ability. We need the service provider have working experience in different kind of web services concepts. The j2ee developer should have minimum 4 years professional exp in software development specialized in creating, producing high quality professional web and software applications We have some j2ee and java application that also want to modify with out any error. This is minimum 8 month contract work you should have the ability to handle multiple works at a time. There is no time limit, flexible timing, you can access our application through remote and can work. But you have to deliver our projects on time. Interested candidates contac...
Handy WordPress hack ? changing javascript library location
2009-04-14 10:00:00 Here’s a little hack I worked out to solve a dilemma that didn’t appear to be particularly well documented. My problem was that I needed to use jQuery 1.3 for some script but the default version in Wordpress 2.7 is v1.2.6. It also makes sense to load the library from a common source such as the ...
Using complex types to make calling services less? complex
2009-04-07 10:33:00 A detailed examination of how jQuery can call ASP.NET AJAX web services (or page methods) with complex types as parameters, to simplify the process of serializing and sending several fields of data at a time.### Originally posted at Encosia. If you're reading this elsewhere, come on over and see the original.Using complex types to make calling services less… complex
By: Dave Ward's Blog
Java Database connectivity guide from DataBase Guide
2009-03-14 17:00:00 Java database connectivity is basically an application that enables users to access pertinent data by the use of queries. The users can update significant information within the given database. The program supports the access to files from spreadsheets, flat files and databases transforming into backstage access to database independent to database management system used. Java database connectivity provides an easy to use platform by choosing the most appropriate platform to use. One simply needs to retrieve an object from the driver manager. High availability usually describes a network and all of its components available for data input, processing and report. The system determines the success depending on planning and understanding the tolerance that would affect the network. Even at small corporation level, high availability is desirable and necessary. As system failure should not bring down the entire system, so fault tolerance is important measure of high availabi...
By: DIGITAL I.T BLOG
JAR Files
2009-02-16 22:10:00 When you have so any classes for your java program then it is good practice to create jar file. A jar files allows developer to efficientl deploy a set of classes and their associated resources. What JAR file can do? When developer uses various media files, class files for his java program then JAR files canbe used ...
By: Onecore
Disponible Windows Live Search Mobile
2009-01-15 13:04:00 Pasó casi desapercibido durante el CES, pero no por eso podíamos dejar de contarles que se encuentra disponible para descarga el nuevo servicio Windows Live Search Mobile, para equipos que funcionen con Windows Mobile, BlackBerry y, en general, aquellos que soportan Java. La aplicación posee varias mejoras que permiten facilitar la tarea de encontrar negocios locales ...
By: TecnoSquad
Saving Journalism With Flash and Java
2009-01-14 14:06:00 From Slashdot: New York magazine has a story about some of the flashy new ideas that are coming out of the labs of the New York Times. The piece prompted Peter Wayner to dig up some of the old Java applets he wrote to explore whether more promiscuity really stops AIDS and whether b
Skype Lite para Android y para equipos compatibles con Java
2009-01-08 18:00:00 Hoy se ha lanzado en forma oficial Skype Lite, una versión de Skype para móviles compatibles con Java. Si bien se encuentra en estado beta en teoría permitiría las mismas funcionalidades que conocemos en Skype, por lo que serán muchos los interesados en descargarla. De momento se encuentra disponible para equipos LG, Nokia, Motorola, Samsung y Sony ...
By: TecnoSquad
The Primary Difference Between The HTML And Java Script Opt-in Form
2009-01-02 05:38:00 With Aweber’s mailing list service, you are provided with the option of using a javascript or html opt-in form on your website. This article will help you comprehend the major differences, so you can decide which opt-in form is best for your list building efforts. What Is List Building? List building is the process of acquiring ...
By: Blog opinion
MegaBlock for Java phones
2008-12-27 22:59:00 MegaBlock is a Tetris clone written in J2ME for mobile phones. The source code is released under the Apache 2.0 license.Free Download: MegaBlock-1.0.0.jar and MegaBlock-1.0.0.jad
Asteroid Belt for Java phones
2008-12-26 22:12:00 Asteroid Belt is a game written in J2ME for mobile phones. The source code is released under the Apache 2.0 license.Free Download: AsteroidBelt-1.0.0.jar and AsteroidBelt-1.0.0.jad
FrogEscape for Java phones
2008-12-25 19:24:00 FrogEscape is a clone of Frogger written in J2ME for mobile phones. The source code is released under the Apache 2.0 license. J2ME devices with a screen resolution of 240x320 or higher supporting MIDP 2.0 and CLDC 1.1. In other words a modern mobile phone with a decent sized screen.Free Download: FrogEscape-1.0.0.jar and FrogEscape-1.0.0.jadvia: rodrigostoledo.com
javascript outstrips java!
2008-12-22 05:54:00 i don’t know about this but thought this was intriguing and also convincing @ the same time. according to JDJ a survey conducted by Evans Data Corp. shows that javascript is the preferred computer language in europe, middle east and africa (emea). read more @ http://itpinoy.blogspot.com [ This is a content summary only. Visit PinoyBlogoSphere.com for full links, other content, and more! ]
Mobile Games 240x320 Java (38 games)
2008-12-20 03:34:00 List:3D Need for Drifting3D Pedrosa GP3D Real Billiards3D Street Racing3D Bigfoot Racing3D Moto Racing3D Formula Racing3D Guns Wheels Madheads 23D Rally EvolutionBattle of ChibiBrave ManBricks of Egypt
Ktech i9B Java Dual SIM Quad-band Video Call PDA Phone - FM Radio, Dual 1.
2008-12-20 03:10:00 Price: €120.99 EURThis Hiphone i9b 3.2" Touch Screen dual SIM Video Call PDA phone is unlocked and can be used all over the world with quad-band!Very strong, Video call PDA phone with Java installed, FM Buy Now
By: padphone
Ktech i9B Java Dual SIM Quad-band Video Call PDA Phone - FM Radio, Dual 1.
2008-12-20 03:10:00 Price: €120.99 EURThis Hiphone i9b 3.2" Touch Screen dual SIM Video Call PDA phone is unlocked and can be used all over the world with quad-band!Very strong, Video call PDA phone with Java installed, FM Buy Now
By: padphone
Java Programming Examples
2008-12-12 02:26:00 Hi,i encounter a question that can we write a normal java program without using "public static void main(String args[])"? If possible give a small example? thanking you |
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