How to Install and Update Eclipse 2019-12 R for Windows, Mac and Linux
How to Download and Use Eclipse IDE for Java Development
Eclipse IDE is a free and open source platform for developing software applications using various programming languages such as Java, C/C++, Python, PHP, Ruby, and more. It is composed of many plugins that provide different functionalities and can be extended with additional plugins. Eclipse IDE is especially popular among Java developers, as it offers a rich set of tools for writing, building, testing, debugging, and running Java applications.
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In this article, you will learn how to download and install Eclipse IDE on Windows, and how to use some of its features for Java development. You will also discover some tips and tricks that will help you improve your productivity and efficiency with Eclipse IDE.
The first step is to download the latest version of Eclipse IDE from the official website. You can choose from different packages that are tailored for specific types of development. For this article, we will use the Eclipse IDE for Java Developers package, which includes the essential tools for Java development such as a Java editor, a Git client, a Maven integration, a JUnit support, and more.
To download Eclipse IDE for Java Developers, follow these steps:
Open your browser and go to .
Click on the Download button to download the Eclipse Installer.
Click on the Download x86_64 button to download the installer for Windows 64-bit.
Save the eclipse-inst-win64.exe file to your Downloads folder.
The next step is to run the Eclipse Installer and choose the package for Java development. The installer will guide you through the installation process and let you customize some options such as the installation folder and the JVM (Java Virtual Machine).
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Open your File Explorer and go to your Downloads folder.
Double-click on the eclipse-inst-win64.exe file to launch the installer.
Select Eclipse IDE for Java Developers from the list of available packages.
Click on the Install button to start the installation.
Accept the license agreement and click on Finish when the installation is complete.
The final step is to start Eclipse and create a workspace. A workspace is a folder where you store your projects and settings. You can have multiple workspaces for different purposes or switch between them as needed.
To launch Eclipse and create a workspace, follow these steps:
Open your Start menu and search for Eclipse.
Click on the Eclipse icon to launch it.
Select a folder for your workspace or use the default one.
Click on Launch to open Eclipse.
Creating a Java Project
Now that you have installed and launched Eclipse, you are ready to create your first Java project. A project is a collection of files that are related to a specific application or module. You can create different types of projects depending on your needs or preferences.
To create a new Java project, follow these steps:
In the Package Explorer view on the left side of the window, right-click anywhere and select New > Project.
In the New Project wizard , select Java Project and click Next.
In the New Java Project wizard, enter a name for your project and click Finish.
You have successfully created a new Java project. You can see it in the Package Explorer view, along with the default source folder and the JRE System Library.
Creating a Java Class
The next step is to create a new Java class. A class is a blueprint for creating objects that have attributes and behaviors. You can define the fields, methods, constructors, and other elements of a class in the code editor.
To create a new Java class, follow these steps:
In the Package Explorer view, right-click on the src folder and select New > Class.
In the New Java Class wizard, enter a name for your class and click Finish.
You have successfully created a new Java class. You can see it in the Package Explorer view, under the src folder. You can also see it in the code editor, where you can write your code.
Writing and Running Java Code
Now that you have created a new Java class, you can write and run some Java code. Eclipse IDE provides many features that make coding easier and faster, such as content assist, syntax highlighting, error detection, and run configurations.
To write and run some Java code, follow these steps:
In the code editor, type the following code inside the class definition:
public static void main(String args) System.out.println("Hello, Eclipse!");
Save your file by pressing Ctrl+S or clicking on the Save button.
Run your code by right-clicking anywhere in the code editor and selecting Run As > Java Application.
You have successfully written and run some Java code. You can see the output of your code in the Console view at the bottom of the window. You can also see the run configuration that was created for your project in the Run menu or the Run toolbar.
Debugging Java Code
Sometimes, your code may not work as expected or may contain errors or bugs. In that case, you can use the debugger to find and fix the problems. The debugger allows you to pause the execution of your code at certain points, inspect the values of variables and expressions, and execute your code step by step.
To debug some Java code, follow these steps:
In the code editor, modify your code to look like this:
public static void main(String args) int x = 10; int y = 0; int z = x / y; System.out.println("The result is " + z);
Save your file by pressing Ctrl+S or clicking on the Save button.
Set a breakpoint on the line where you declare the variable z by double-clicking on the left margin of that line. A blue dot will appear to indicate the breakpoint.
Debug your code by right-clicking anywhere in the code editor and selecting Debug As > Java Application.
Confirm to switch to the Debug perspective when prompted. The Debug perspective is a layout of views that are useful for debugging.
Observe how your code stops at the breakpoint and how you can see the values of variables and expressions in the Variables view and the Expressions view on the right side of the window.
Step over your code by pressing F6 or clicking on the Step Over button. Notice how your code throws an ArithmeticException because you are trying to divide by zero.
Terminate your debugging session by pressing Ctrl+F2 or clicking on the Terminate button.
You have successfully debugged some Java code. You can use other features of the debugger such as Step Into, Step Return, Resume, Suspend, and Drop To Frame to control and examine your code execution.
One of the advantages of Eclipse IDE is that it can be extended with additional plugins that provide more functionalities and features. There are thousands of plugins available for Eclipse IDE that cover various aspects of software development