Learn how to install Java locally to solve Exercism's exercises on your own machine
In addition to the exercism CLI and your favorite text editor, practicing with Exercism exercises in Java requires:
Choose your operating system:
... or ...
Optionally, you can also use a Java IDE.
Open an administrative command prompt. (If you need assistance opening an administrative prompt, see open an elevated prompt in Windows 8+ (or Windows 7).
If you have not installed Chocolatey, do so now:
C:\Windows\system32> @powershell -NoProfile -ExecutionPolicy unrestricted -Command "iex ((new-object net.webclient).DownloadString('https://chocolatey.org/install.ps1'))" && SET PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin
Install the JDK:
C:\Windows\system32> choco install openjdk11
...
C:\Windows\system32> refreshenv
...
Install Gradle:
C:\Windows\system32>choco install gradle
...
We recommend closing the administrative command prompt and opening a new command prompt -- you do not require administrator privileges to practice Exercism exercises.
You now are ready to get started with the Java track of Exercism!
To get started, see "Running the Tests".
Below are instructions for install using the most common method - using Homebrew. If you'd rather, you can also install on macOS without Homebrew.
If you haven't installed Homebrew, yet, do so now:
$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Tap the Homebrew Cask — this allows us to install pre-built binaries like the JDK.
$ brew tap adoptopenjdk/openjdk
Install the JDK:
$ brew install --cask adoptopenjdk11
Install Gradle:
$ brew install gradle
You now are ready to get started with the Java track of Exercism!
To get started, see "Running the Tests".
Below are instructions for install using the package manager of your distro. If you'd rather, you can also install on Linux without a package manager.
If you are using Debian or its derivatives (like Ubuntu), use APT:
(verified on: Ubuntu 14, 16 and 18)
Install the JDK:
$ sudo apt-get update
$ sudo apt-get install software-properties-common
$ sudo add-apt-repository ppa:openjdk-r/ppa
$ sudo apt-get update
$ sudo apt-get install openjdk-11-jdk
Install Gradle:
$ sudo add-apt-repository ppa:cwchien/gradle
$ sudo apt-get update
$ sudo apt-get install gradle
You now are ready to get started with the Java track of Exercism!
To get started, see "Running the Tests".
There are a lot of ways to install Jdk 11, but one of the easiest ways is to use SDKMAN, which lets you install both OpenJdk11 and the latest Gradle with ease. Use the following steps:
$ curl -s "https://get.sdkman.io" | bash
(if that doesn't work, take a look at the instructions found here: https://sdkman.io/install )$ sdk install java 11.0.2-open
$ sdk install gradle
You now are ready to get started with the Java track of Exercism!
To get started, see "Running the Tests".
NOTE: these instructions are intended for experienced Windows users. If you don't already know how to set environment variables or feel comfortable managing the directory structure, we highly recommend you use the Chocolatey-based install, above.
C:\Users\JohnDoe\Tools
.GRADLE_HOME
and set it to the path you just created (e.g. C:\Users\JohnDoe\Tools\gradle-x.y
).Path
to include the bin
directory from Gradle's home (e.g. Path
=...;%GRADLE_HOME%\bin
).You now are ready to get started with the Java track of Exercism!
To get started, see "Running the Tests".
NOTE: these instructions are intended for experienced macOS users. Unless you specifically do not want to use a package manager, we highly recommend using the Homebrew-based installation instructions, above.
Install the JDK:
Install Gradle:
$ mkdir ~/tools
$ cd ~/tools
$ unzip ~/Downloads/gradle-*-bin.zip
$ cd gradle*
$ cat << DONE >> ~/.bashrc
export GRADLE_HOME=`pwd`
export PATH=\$PATH:\$GRADLE_HOME/bin
DONE
You now are ready to get started with the Java track of Exercism!
To get started, see "Running the Tests".
NOTE: these instructions are intended for experienced Linux users. Unless you specifically do not want to use a package manager, we highly recommend using the installation instructions, above.
Install the JDK:
Install Gradle:
$ mkdir ~/tools
$ cd ~/tools
$ unzip ~/Downloads/gradle-*-bin.zip
$ cd gradle*
$ cat << DONE >> ~/.bashrc
export GRADLE_HOME=`pwd`
export PATH=\$PATH:\$GRADLE_HOME/bin
DONE
You now are ready to get started with the Java track of Exercism!
To get started, see "Running the Tests".
There are many Java IDEs available. The three most popular are:
and there are others.