In this guide, I’m going to show you exactly how to download and install JDK 11 on Windows.
First, I’ll show you where you can get JDK 11.0.1.
Then you’ll see how to configure it.
And finally how to verify if everything is working.
Let’s dive right in…
What is a JDK?
When you want to create a Java application you need a Java Development Kit (JDK). It contains tools that allow you to develop and run your Java program.
One of these development tools is a compiler (javac) that converts Java source code (
.java files) into Java bytecode (
.class files). Other tools include an archiver (jar) and a documentation generator (javadoc).
The JDK also contains a Java Runtime Environment (JRE) that is able to run compiled Java code. To do this the JRE uses Java libraries and a Java Virtual Machine (JVM) that executes the compiled Java code.
Different JDK implementations are available. The official reference implementation is maintained by Oracle.
Important: as of Java 11, Oracle has changed the license of their JDK. Instead of having a single JDK build which you can use for free, they now have two different JDK builds:
- Oracle’s JDK (commercial) – you can use this in development and testing for free, but if you use it in production you have to pay for it.
- Oracle’s OpenJDK (open source) – you can use this for free in any environment.
We will install the free version in this guide as Oracle’s JDK and OpenJDK are functionally the same.
Step #1: Download
Head over to the Oracle OpenJDK download page.
Look for the
Click on the
zip link right next to
At the time of writing the latest Oracle OpenJDK release was version:
Note that as from version 9, Oracle no longer provides 32-bit JDK builds.
Wait for the download to complete.
Step #2: Install
Open the location of the downloaded binary.
Select the ZIP archive file. Right-click and then click on the
Extract All… menu item.
Select an extract destination for the JDK files.
In this example, we extract in
This extracts all JDK files under
From now on we refer to this location as
Step #3: Setup
We need to set up an environment variable that will point to our JDK installation.
Click on the search button. Then type “env” (without quotes).
On Windows 7 click on the Windows button.
Click on the
Edit environment variables for your account shortcut.
Wait for the environment variables window to open.
Enter “JAVA_HOME” as variable name. Enter the
[JAVA_INSTALL_DIR] as variable value.
In this tutorial, the Java installation directory is
Next, we need to configure the PATH environment variable so we can run Java from a command prompt.
Path variable. Click on
New and type “%JAVA_HOME%\bin” as shown below.
OK once more to close the environment variables window.
Pathvariable does not exist you need to create it. Use “Path” as variable name and “%JAVA_HOME%\bin” as variable value.
On Windows 7 you cannot add extra values for an existing
Pathvariable. You need to append “;%JAVA_HOME%\bin” at the end of the variable value instead.
Step #4: Test
Let’s test the setup.
Click on the search button. Then type “cmd” (without quotes).
Click on the
Command Prompt shortcut.
Wait for the command prompt to open.
Type “java -version” and press
The above command prints the installed OpenJDK version:
Congratulations, you have installed JDK 11 on Windows 10!
Now take the next step and write your first Java program.
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