Eclipse windows java home

How do I change my Java home directory in eclipse?

To set JAVA_HOME in eclispe few options given below. Navigate to Run menu -> External Tools configurations -> Navigate to environment tab -> Add JAVA_HOME variable and it’s path as it’s value to set environment variable in eclipse.

How do I update Ant in eclipse?

Go to Help -> About RAD -> Intallation details -> Plugins locate the org. apache. ant plugin version you are using. Note the Provider in this case for me it was Eclipse Orbit.

What is Ivy build tool?

Apache Ivy is a transitive package manager. It is a sub-project of the Apache Ant project, with which Ivy works to resolve project dependencies. Ivy then resolves and downloads resources from an artifact repository: either a private repository or one publicly available on the Internet.

How do I add dependency to Ivy?

Create a settings folder under E: > ivy2. Create the ivysettings. xml in the settings folder. Here we’ve added two dependencies,one of commons-lang library and another as test which we published in IVY – Publish Task chapter.

What is Ivy build?

Ivy is an Ant extension for managing external libraries during the development process, giving you a way of adding them to your classpath, bundling them into your application build, etc. There’s some overlap with what Maven does, but Ivy is much more lightweight (and doesn’t do as much).

What is Ivy in eclipse?

Apache IvyDE™ is the Eclipse plugin which integrates Apache Ivy’s dependency management into Eclipse. It lets you manage your dependencies declared in an ivy. xml in your Java Eclipse projects, or any other kind of project which needs dependency management.

How do I change my Ant version?

Window > Preferences > Ant > Runtime. 1 are grouped under the Ant Home Entries item. To change the Ant Home entries, click on the Ant Home… button and choose the Ant installation you wish to use. After you change the Ant classpath, all future Ant builds will use the updated version instead of the default.

How to change java.home for Eclipse / ant Stack Overflow?

If you are using Eclipse, try the following: Right click on the ant build file, then choose “Properties”. Click on the “Run/Debug Settings”, then click on the launch configuration file. After you click “Edit”, you should see a new window with a “Properties” tab which will show you a list of Ant build properties.

How to enable the ant view in Eclipse?

Enable Ant View by following Window > Show View > Other > Ant > Ant. Open Project Explorer, drag the build.xml into the Ant View. Clicking on the targets, build / clean / usage will run Ant with the target. Clicking “fax” will execute the default target – usage. The Ant Eclipse plugin also comes with a good editor for editing build.xml files.

Where is the java.home variable in Eclipse?

In Eclipse the Ant java.home variable is not based on the Windows JAVA_HOME environment variable. Instead it is set to the home directory of the project’s JRE.

How do I set environment variables in ant?

Because you’re installing Ant by hand, you also need to deal with setting environment variables by hand. For Windows XP: To set environment variables on Windows XP, right click on My Computer and select Properties. Then go to the Advanced tab and click the Environment Variables button at the bottom.

Does ant use JAVA_HOME?

The ant. bat script makes use of three environment variables— ANT_HOME , CLASSPATH and JAVA_HOME .

How do I change my Java home path?

To set JAVA_HOME, do the following: Right click My Computer and select Properties. On the Advanced tab, select Environment Variables, and then edit JAVA_HOME to point to where the JDK software is located, for example, C:\Program Files\Java\jdk1.

How do I run Ant build in Eclipse?

Setting up ant build for Java Workspace in Eclipse

1. Open the Java project in Eclipse.
2. Right click the project.
3. Go to Export.
4. In the General section select Ant build files and click “Next”
5. Select the project you want to build, un-check “Create target to compile project using Eclipse compiler”, and click “Finish”

How do I check ant build version?

Check your installation by opening a command line and typing ant -version into the commend line. The system should find the command ant and show the version number of your installed Ant version.

What is ant build tool?

Ant is a Java-based build tool created as part of the Apache open-source project. You can think of it as a Java version of make. Ant scripts have a structure and are written in XML. For example, Ant is used in the context of plug-in development in the build. xml, created from a plugin.

How do I change my Java version?

In the Java Control Panel, click on the Java tab. Verify that the latest Java Runtime version is enabled by checking the Enabled box. Click OK in Java Control Panel window to confirm changes and close the window. Try to run same applet and verify it is now running using latest version of Java installed in your system.

What is Ant build file in Eclipse?

Ant is a Java-based build tool created as part of the Apache open-source project. You can think of it as a Java version of make. Ant scripts have a structure and are written in XML. Similar to make, Ant targets can depend on other targets.

How do I do ant clean in eclipse?

2 Answers. Right click on the build. xml > Run As > Ant Build… On Targets tab, check clean option.

How to change JRE for ant in Eclipse?

To change this behavior, click Run > External Tools > External Tools Configurations… from Eclipse’s main menu: In the External Tools Configurations dialog, select an Ant build file on the left, then JRE tab on the right: Now we have three options to specify a JRE for the selected Ant build file:

How to change java.home for ant Stack Overflow?

Click on the “Run/Debug Settings”, then click on the launch configuration file. You should be able to edit it then. After you click “Edit”, you should see a new window with a “Properties” tab which will show you a list of Ant build properties. There is a “java.home” property in the list. Make sure it refers to the correct path.

Why is Java home not set in the environment?

Much of it is just trying to determine exactly where $ANT_HOME and $JAVA_HOME reside if these are not set by default in the environment. So, even though $JAVA_HOME is set inside the ant script, it is never exported into the environment (unless someone has modified the ant shell script.

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How to run Eclipse under different version of JDK or JRE

In this article, I will guide you how to change JDK/JRE that runs Eclipse IDE, on Windows operating system. First, you need to know exactly which version of Java on which Eclipse is running.

1. Find the JDK / JRE that runs Eclipse

In Eclipse, click menu Help > About Eclipse IDE. Then in the About Eclipse IDE dialog, click the Installation Details button. Then in the next screen, click Configuration tab. Wait for a moment while Eclipse is retrieving configuration information, and you will see a screen as below:

Find the line that starts with –vm and the value in the next line shows the exact path of JDK/JRE on which Eclipse is running. In the above screenshot, you see Eclipse is running on OpenJDK 11.0.2.

2. How to Change JDK / JRE for Eclipse

You know, Eclipse IDE is written in Java so it needs a JDK/JRE installed to run. By default, the first instance of JDK/JRE found in the PATH environment variable is used to run Eclipse. Consider a typical value of the PATH environment variable like this:

path1;path2;path3;…;%JAVA_HOME%\bin;

In this case, the Java Virtual Machine found in the JAVA_HOME path will run Eclipse IDE. So changing the Java version that run Eclipse is just a matter of updating the value of the JAVA_HOME variable.

However, sometimes it doesn’t work like that. You changed JAVA_HOME points to a newer JDK/JRE, but Eclipse still runs under the old one. Why? What happens?

• An installation of Oracle Java putting its path before your JAVA_HOME, or
• Your Eclipse IDE is configured to stick with a JDK/JRE in its configuration file.

Edit the PATH environment variable on Windows, and you may see a screen as below:

Here, an installation of Oracle Java puts the following line before your JAVA_HOME :

C:\Program Files (x86)\Common Files\Oracle\Java\javapath

That means the JDK/JRE found in this path is always used to run Eclipse. Your JAVA_HOME is ignored. So to change, just move your JAVA_HOME before Oracle’s javapath using the Move Up and Move Down buttons; or delete that Oracle’s javapath. Then restart Eclipse and check configuration again to make sure Eclipse is actually running on the JDK/JRE you specified.

If that doesn’t work, it’s very likely that your Eclipse is somehow configured to stick with a specific version of Java Virtual Machine in its configuration file.

Open the eclipse.ini file in Eclipse’s installation directory in a text editor like Notepad. You may see something like this:

Now, you can change the path after the –vm line to point to a different path of JDK, or delete these two lines to use the Java version specified in the PATH system environment variable.

Phew! That’s how to change the version of Java virtual machine that powers your Eclipse IDE. I hope you found this article helpful.

You can also watch the video version below:

Other Eclipse Tutorials:

About the Author:

Nam Ha Minh is certified Java programmer (SCJP and SCWCD). He started programming with Java in the time of Java 1.4 and has been falling in love with Java since then. Make friend with him on Facebook and watch his Java videos you YouTube.

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1. Как установить Java (JDK) и Eclipse IDE на платформе Windows 7

1. Открываем ссылку Java SE — Downloads и скачайте JDK.
2. На открывшейся странице нужно согласиться с лицензионным соглашением (Accept License Agreement) и выбрать ссылку на скачку, соответствующую используемой операционной системе. В данном примере это Windows.
3. Сохраняем файл на компьютер и запускаем. Появится окно установщика. Последовательно проходим все стадии установки Java SDK, сложного ничего нет и можно просто кликать Next.
4. Настроим системную переменную JAVA_HOME, которая содержит путь к папке, где установлена Java. Это необходимо для того, чтобы другие программы могли использовать Java.
5. В системную переменную Path добавляем путь к папке bin в папке с JDK. Для этого изменяем системную переменную Path, в конце существующей строки добавляем точку с запятой, после нее добавляем следующее: %JAVA_HOME%\bin
6. Необходимо перезапустить систему;
7. Чтобы проверить, что всё сделано правильно, запускаем командную строку. В командной строке наберите java и нажмите [Enter]. Если всё сделано правильно, то в ответ должно быть выдано вот что:
8. После набираем javac -version и получаем:

Как установить Eclipse IDE

1. Открываем ссылку Eclipse Downloads и качаем Eclipse IDE for Java EE Developers. Выбираем 32 или 64 битную версию в зависимости от ОС Windows, которая установлена на нашем ПК.
2. После того, как архив загрузился, распаковываем содержимое, к примеру в: C:\eclipse. В этой папке находим eclipse.exe и создаём ярлык.

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