Restlet HelloWorld Example in Java and Eclipse

The Restlet is one of the first open source frameworks to create and deploy RESTful web service in Java. After the release of JAX-RS (Java API for RESTful Web Services) JSR - 317, Restlet also supports JAX-RS annotation and provides a consistent way to create both RESTful Server and Client. HelloWorld program is the traditional way to start with a new technology and continuing to the tradition, we'll write our first Restlet program as HelloWorld. Since Restlet can be used to create on both client and server side, we'll first expose a resource as RESTful web service using Restlet server and then consumer the same RESTful web service by creating a RESTful client. I'll use Maven and Eclipse to create this RESTlet HelloWorld example, if you are not familiar with Maven, it's a build automation tool like ANT for Java projects but also provides dependency management i.e. you don't need to download Restlet JAR manually, Maven will do it for you. To learn more about Maven see here.

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How to increase heap size of Eclipse - Solving OutOfMemoryError

If you are running lots of Java projects in Eclipse and it's throwing OutOfMemoryError every now and then it's time to increase the heap memory of Eclipse. Since Eclipse is a Java program, you can increase heap size of Eclipse by using JVM memory options -Xms and -Xmx. There are two ways to provide JVM options to eclipse either updating Eclipse shortcut or adding -vmargs on eclipse.ini file. I prefer the second option because it's clean. I'll tell you the exact steps to increase the java heap space in Eclipse but before that some background why I had to increase heap memory of Eclipse. I was getting "an internal error occurred during repository search . java heap space" while using Maven in Eclipse. Eclipse keep throwing java.lang.OutOfMemory:Java Heap Space while updating the index or searching for maven artifacts.

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3 Maven Eclipse Tips for Java Developers

If you are using Maven inside Eclipse IDE via M2Eclipse plugin then following tips can help you a lot.

1) Setup Dependency as Java Project in Eclipse
If your POM dependencies is another project in Eclipse then your project will automatically get updated whenever you build the dependent project. For example, let's say you have a project, ABC, which is dependent on two core modules e.g. framework.jar and persistence.jar, if you have checked out these project and has set up them as Maven Eclipse project, M2Eclipse can directly add them as dependency, instead of loading their JAR files from repository, be it local or remote.

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Eclipse - How to add/remove external JAR into Java Project's Classpath

There are multiple ways you can add an external JAR into the classpath of a Java project in Eclipse, but all goes via adding them into build path. Many beginner's struggles to add JARs into classpath and we will try to address that problem in this tutorial. You will learn step by step tutorial to add an internal or third party JAR in your application's CLASSPATH in Eclipse Indigo. Since this feature has hardly changed in any Eclipse version, you can follow same steps in Eclipse Kepler, Indigo, and Juno version to add JARs into classpath. Since Eclipse is the most popular Java IDE and used by many companies, it's important for a Java developer to know Eclipse in and out. It will not only help to work better but also to create the better impression among your teammates.

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How to make Eclipse use spaces instead of tabs in Java editor

I use Eclipse IDE extensively to write Java programs for testing and example purpose, but when I copy those program in any text editors e.g. VIM, Notepad, TextPad or Edit plus, the indentation goes weird. I see a lot of white spaces which makes the program wider than expected. This happens because when you copy Java program from Eclipse to a text editor, tabs are converted to spaces and different editor has the different settings of tabs. UNIX text editors prefer tab is 8 spaces, Windows text editors, and IDEs  e.g. Eclipse treat tabs as 4 spaces. If you are like many Java programmer who is more comfortable with space than tabs because they give a true sense of spacing, you can always change the Java editor settings to use space instead of tabs in Eclipse. In this article, I am going to share how to make Eclipse uses spaces instead of tabs for Java editor, which you use while writing Java programs.

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3 Books to Learn Eclipse IDE for Java JEE Programmers - Best of Lot

In order to become a good Java developer solid knowledge of Eclipse IDE, or whatever IDE you use e.g. Netbeans or IntelliJ Idea, is a must. Java has been blessed with excellent tooling which turbo-charge application development. IDEs or Integrated Development Environment allows you to code, run, test and debug from just one tool. They are the immense productivity booster. Since I have started Java development coding in Notepad, TextPad, and JCreator, I know how it feels having the power of IDEs with you. There are three big IDEs in Java world, Eclipse, NetBeans and IntelliJ Idea. First two are free and third one requires the license. I use Eclipse and it's also the most popular IDE in Java world.

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How to connect to Microsoft SQL Server database using Eclipse

Though I prefer SQL Server Management Studio to access and work with Microsoft SQL Server database, Sometimes, it's better to connect MSSQL database directly from Eclipse. This will save a lot of time which is wasted on switching between two applications, Eclipse and SSMS. It will also keep your PC fast enough because less application means less overhead. Eclipse IDE allows you to connect to almost all the database you have heard e.g. Oracle, MySQL, PostgreSQL, DB2 etc. All the steps are pretty much same, so once you know how to connect SQL Server database from Eclipse, you can connect Oracle or MySQL by yourself. Since Eclipse connects to the database using JDBC, you need to deploy JDBC drivers in your classpath. This is done part of New Database Connection Profile, one of the steps, which we will see later. In this article, I'll show you step by step guide to connect to Microsoft SQL Server database using Eclipse.

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