Eclipse Java 13

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Step 10) Click on 'Create a new Java project' link. Step 11) Create a new Java Project. Write project name. Click on 'Finish button'. Step 12) Create Java Package. Click on 'Package'. Step 13) Writing package name. Write name of the package; Click on Finish button. Step 14) Creating Java Class. Click on package you. However, as a beginner, you may leave these for a while and work with the simple Java project by adding more packages and classes as you need. Build Your Java Project. A Java builder is the tool that will compile your code and create class files for your classes. Usually, in Eclipse IDE, the default setting is to have your code build automatically.

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  4. Eclipse Java 13
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Written by Nam Ha Minh
Last Updated on 04 October 2019 Print Email
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

Eclipse Java Error 13

Help > About Eclipse IDE. Then in the About Eclipse IDE dialog, click the Installation Details

Eclipse Java 13 Error

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 13.0.2PATHenvironment variable is used to run Eclipse. Consider a typical value of the PATHenvironment variable like this: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?There are two reasons:
  • 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.

Let me show you how to change JDK/JRE for Eclipse in both cases.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 Eclipse Java 13JAVA_HOME: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

Eclipse Java 13

Java 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:

Eclipse Java 13

Eclipse Java 13

Eclipse Java 13 Support

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.