Eclipse (@ www.eclipse.org) is an open-source Integrated Development Environment (IDE) supported by IBM. Eclipse is popular for Java application development (Java SE and Java EE) and Android apps. It also supports C/C++, PHP, Python, Perl, and other web project developments via extensible plug-ins. Eclipse is cross-platform and runs under Windows, Linux and Mac OS.

Eclipse Versions

The various versions are:

Eclipse 1.0 (November 7, 2001): based on an earlier Java IDE called VisualAge from IBM.
Eclipse 2.0 (June 28, 2002)
Eclipse 2.1 (March 28, 2003)
Eclipse 3.0 (June 25, 2004)
Eclipse 3.1 (June 28, 2005)
Eclipse 3.2 (June 30, 2006) (Callisto - named after one of the Jupiter's Galilean moons): started annual simultaneous release of all the related Eclipse projects.
Eclipse 3.3 (June 25, 2007) (Europa - named after another Jupiter's Galilean moons)
Eclipse 3.4 (June 19, 2008) (Ganymede - named after yet another Jupiter's Galilean moons)
Eclipse 3.5 (June 12, 2009) (Galileo - named after the great 17th century scientist and astronomer Galileo Galilei)
Eclipse 3.6 (June 23, 2010) (Helios - named after god of the sun in Greek Mythology)
Eclipse 3.7 (June 23, 2011) (Indigo)
Eclipse 4.2 (June 27, 2012) (Juno)
Eclipse 4.3 (June 2013) (Kepler)
Eclipse 4.4 (June 2014) (Luna)
Eclipse 4.5 (June 2015) (Mars)
Eclipse 4.6 (June 2016) (Neon)
Eclipse 4.7 (June 2017) (Oxygen)
Eclipse 4.8 (June 2018) (Photon)
Eclipse 2018-09 (4.9)
Eclipse 2018-12 (4.10)

Eclipse.ini is the configuration file used to control the Eclipse startup. We can configure Eclipse VM arguments such as JDK to be used (eclipse.ini vm), permgen space, maximum and minimum heap size using Xms, Xmx parameters. The latest version of Eclipse is 4.9 on Mac Informer. It is a perfect match for IDE in the Developer Tools category. The app is developed by The Eclipse Foundation and its user rating is 4.4 out of 5. In this tutorial, we will learn how to install eclipse IDE on Mac OS X. Eclipse IDE (Integrated development environment) is written in Java and mostly used for developing Java applications. Process of removal of Eclipse is different for Mac OS and Windows. I have shared the details of both the OS. Uninstall Eclipse for Windows Method #1: Use ‘Uninstaller’ Application. To remove the Eclipse completely from your system, you need to download an application named Uninstaller. I am Java developer who is using Eclipse on a X86 computer to code. I am considering to buy for other reasons an Desktop Mac computer and I would like to use this computer to do my coding work.

How to Install Eclipse IDE 2018-12 for Java Developers

How to Install Eclipse on Windows

Step 0: Install JDK

To use Eclipse for Java programming, you need to first install Java Development Kit (JDK). Read 'How to Install JDK for Windows'.

Step 1: Download

Download Eclipse from https://www.eclipse.org/downloads. Under 'Get Eclipse IDE 2018-12' ⇒ Click 'Download Packages'. For beginners, choose the 'Eclipse IDE for Java Developers' and 'Windows 64-bit' (e.g., 'eclipse-java-2018-12-R-win32-x86_64.zip' - about 184MB) ⇒ Download.

Step 2: Unzip

To install Eclipse, simply unzip the downloaded file into a directory of your choice (e.g., 'c:myproject').

I prefer the zip version, because there is no need to run any installer. Moreover, you can simply delete the entire Eclipse directory when it is no longer needed (without running any un-installer). You are free to move or rename the directory. You can install (unzip) multiple copies of Eclipse in the same machine.

How to Install Eclipse on Mac OS X

To use Eclipse for Java programming, you need to first install JDK. Read 'How to install JDK for Mac OS X'.

To install Eclipse:

Goto http://www.eclipse.org/downloads/. Under 'Get Eclipse IDE 2018-12' ⇒ Click 'Download Packages'. For beginners, select 'Eclipse IDE for Java Developers' and 'Mac Cocoa 64-bit'. You will receive a DMG file (e.g., 'eclipse-java-2018-12-R-macosx-cocoa-x86_64.dmg').
Double-click the downloaded Disk Image (DMG) file. Follow the screen instructions to install Eclipse. Eclipse will be installed under '/Applications/eclipse'. (To confirm!)

How to Install Eclipse on Ubuntu Linux

Eclipse comes with many flavors (See 'Eclipse Packages' @ https://www.eclipse.org/downloads/compare.php):

To use Eclipse for Java programming, choose 'Eclipse IDE for Java Developers' (JavaSE) or 'Eclipse IDE for Java EE Developers' (JavaEE). You need to first install JDK. Read 'How to install JDK on Ubuntu'.
To use Eclipse for PHP programming, choose 'Eclipse IDE for PHP Developers'.
To use Eclipse for C/C++ programming, choose 'Eclipse IDE for C/C++ Developers'.

Nonetheless, you can install any package, and then add more features when needed.

To install Eclipse (e.g, for Java Programming):

Download Eclipse from http://www.eclipse.org/downloads/. Under 'Get Eclipse IDE 2018-12' ⇒ Click 'Download Packages'. Choose 'Eclipse IDE for Java Developers' for Java SE program development; or 'Eclipse IDE for Java EE Developers' for developing webapps ⇒ Linux 64-bit. You will receive a tarball (e.g., 'eclipse-java-2018-12-R-linux-gtk-x86_64.tar.gz') in the '~/Downloads' folder.
We shall install Eclipse under /usr/local.

To run Eclipse, open the '/usr/local/eclipse' folder and click on the 'Eclipse' icon; or start a 'Terminal', enter 'eclipse'.

Lock Eclipse on Launcher

Simply start Eclipse. Right-click the Eclipse icon ⇒ Lock to Launcher.

(For older version - If the above don't work) Create a /usr/share/applications/eclipse.desktop file with the following contents:

Start Eclipse, right-click on the Eclipse icon on launcher ⇒ lock to launcher.

Writing your First Java Program in Eclipse

Step 0: Launch Eclipse

Launch Eclipse by running 'eclipse.exe' from the Eclipse installed directory.
Choose an appropriate directory for your workspace, i.e., where you would like to save your files (e.g., c:myprojecteclipse for Windows).
If the 'Welcome' screen shows up, close it by clicking the 'close' button next to the 'Welcome' title.

Step 1: Create a new Java Project

For each Java application, you need to create a project to keep all the source files, classes and relevant resources.

To create a new Java project:

Choose 'File' menu ⇒ 'New' ⇒ 'Java project' (or 'File' ⇒ 'New' ⇒ 'Project' ⇒ 'Java project').
The 'New Java Project' dialog pops up.
1. In 'Project name', enter 'FirstProject'.
2. Check 'Use default location'.
3. In 'JRE', select 'Use default JRE (currently 'JDK11.0.x')'. But make sure that your JDK is 1.8 and above.
4. In 'Project Layout', check 'Use project folder as root for sources and class files'.
Push 'Finish' button.
In 'Create module-info.java' dialog, Click 'Don't Create'. (Note: For easier version of Eclipse, you need to use the 'Next' Button in the previous step, and uncheck 'Create module-info.java file').

Step 2: Write a Hello-world Java Program

In the 'Package Explorer' (left pane) ⇒ Right-click on 'FirstProject' (or use the 'File' menu) ⇒ New ⇒ Class.
The 'New Java Class' dialog pops up.
1. In 'Source folder', keep the 'FirstProject'.
2. In 'Package', delete the content if it is not empty.
3. In 'Name', enter 'Hello'.
4. Check 'public static void main(String[] args)'.
5. Don't change the rest.
Push 'Finish' button.
The source file 'Hello.java' opens on the editor panel (the center pane). Enter the following codes:

Step 3: Compile & Execute the Java Program

There is no need to compile the Java source file in Eclipse explicitly. It is because Eclipse performs the so-called incremental compilation, i.e., the Java statement is compiled as and when it is entered.
To run the program, right-click anywhere on the source file 'Hello.java' (or choose 'Run' menu) ⇒ Run As ⇒ Java Application.
The output 'Hello, world!' appears on the Console panel (the bottom pane).

NOTES:

You should create a NEW Java project for EACH of your Java application.
Nonetheless, Eclipse allows you to keep more than one programs in a project, which is handy for writing toy programs (such as your tutoria

Eclipse For Mac