#HOW TO USE ECLIPSE FOR JAVA INSTALL#
#HOW TO USE ECLIPSE FOR JAVA UPGRADE#
#HOW TO USE ECLIPSE FOR JAVA CODE#
#HOW TO USE ECLIPSE FOR JAVA PLUS#
#HOW TO USE ECLIPSE FOR JAVA DOWNLOAD#

You can also drag the tabs around to organize them however you want. I’d start by closing the Task List and Connect Mylyn tabs. That’s because Eclipse contains a bunch of tools that make coding easier, but looking at all of them at once can be overwhelming. You’ve probably noticed by now that Eclipse has a bunch of buttons, menus, and tabs. Notice that a project can contain multiple classes that contain a main() method (so far ours contains both a HelloWorld class and a M圜hart class), and Eclipse will run the one that you currently have selected.

#HOW TO USE ECLIPSE FOR JAVA CODE#

Now you can run this code using the run button, and you’ll see a window that uses the JFreeChart libary to create a bar chart: You can type your code into Eclipse (after creating a project and a class) just like you could in a basic text editor. This finally gives you a Java class you can type your code into! This dialog contains a bunch of options you can set, but for now just give your class a name and click the Finish button. That brings up the New Java Class dialog.

First, create a new class by expanding your project in the Package Explorer, then right-clicking the src directory, expanding the New menu, and then clicking the Class option. Now that you have a project, you can finally start writing code. Now you should see your project in the Package Explorer tab in Eclipse:

This dialog lets you change settings for your project, but for now just give your project a name and click the Finish button. This opens up the New Java Project dialog. ProjectsĮclipse organizes code into projects, so before we can start writing code we have to create a project. We’ll focus on the ones you care about, and you can ignore the rest for now. You should see something like this:Įclipse has a bunch of different tools and buttons, but don’t feel overwhelmed. Freel free to close that tab, and uncheck the “Always show Welcome at start up” checkbox. That will finally open up Eclipse, which by default will show you a Welcome screen. But as you write more code, you might want to split it up into multiple workspaces: you might have the stuff you work on for your job or for school in one workspace, and the stuff you work on for fun in another workspace. Starting out, you’ll probably only use one workspace, so you can also check the “Use this as the default and do not ask again” checkbox as well. You can choose whatever directory you want here (again, the default is fine). The main difference is that a JDK also contains. The directory you choose here will be where your code and settings files are saved. Java Development Kit, instead of a Java Runtime Environment (JRE). The first thing Eclipse will do is ask you for a workspace directory:Įclipse needs a place to put your code and your settings, and that’s what a workspace is. After the installer finishes, launch Eclipse! Workspaces

#HOW TO USE ECLIPSE FOR JAVA INSTALL#

Install Eclipse wherever you want (the default location it suggests is fine).

#HOW TO USE ECLIPSE FOR JAVA UPGRADE#

But you can always upgrade from Java to Java EE later, so for now I would just choose the Java version. Otherwise you should just install the Java version. So if you’re going to write server code, then you should install the Java EE version.

#HOW TO USE ECLIPSE FOR JAVA PLUS#

The Eclipse IDE for Java EE Developers includes those tools, plus some extra tools for writing server code.

The Eclipse IDE for Java Developers includes all of the tools you need to write Java code.

The first screen of the installer will ask you which version of Eclipse you want:

#HOW TO USE ECLIPSE FOR JAVA DOWNLOAD#

Download the Eclipse installer from there, and then run the installer. Go to the Eclipse homepage and find the download page. (And most of the stuff you learn about here will apply to other IDEs as well.) Downloading Eclipse This tutorial introduces you to another IDE called Eclipse, which is one of the most common IDEs used for Java development. The Processing editor ran your code when you pressed the play button, and it showed you errors without going through the command line. If you’re coming from a Processing background, remember that you wrote Processing code in the Processing editor. But as you start working on more complicated code, you’re probably going to want to use an integrated development environment, aka an IDE.Īn IDE is a more advanced code editor that also includes tools for navigating your code more easily, as well as compiling and running your code without going through the command line. It’s a good idea to start programming this way, so you understand the basics of compiling, running, setting the classpath, and looking stuff up in the Java API. Eclipse is a great IDE (Integrated Development Environment) for developing Java applications.So far, we’ve been using a basic text editor to edit our code, and we’ve been using the command line to compile and run our classes.

How to use eclipse for java