add shell for java

README.md

@@ -82,7 +82,8 @@ use flake github:adtya/devshell#rust
 #### What's included?
  - [nodejs](https://nodejs.org)
  - [yarn](https://yarnpkg.com)
-#### Activatge with Nix
+
+#### Activate with Nix
 ```sh
 $ nix develop github:adtya/devshell#node
 ```
@@ -91,4 +92,18 @@ $ nix develop github:adtya/devshell#node
 ```sh
 use flake github:adtya/devshell#node
 ```
+### Java
 
+#### What's included?
+ - OpenJDK 20
+ - gradle 8
+
+#### Activate with Nix
+```sh
+$ nix develop github:adtya/devshell#java
+```
+
+#### Activate with Direnv
+```sh
+use flake github:adtya/devshell#java
+```

flake.nix

@@ -24,9 +24,10 @@
       devShells = {
         go = import ./shells/go.nix { inherit pkgs; };
         haskell = import ./shells/haskell.nix { inherit pkgs; };
+        java = import ./shells/java.nix { inherit pkgs; };
+        node = import ./shells/node.nix { inherit pkgs; };
         python = import ./shells/python.nix { inherit pkgs; };
         rust = import ./shells/rust.nix { inherit pkgs; };
-        node = import ./shells/node.nix { inherit pkgs; };
       };
     }
   );

shells/java.nix

@@ -0,0 +1,3 @@
+{ pkgs }: pkgs.mkShell {
+  packages = with pkgs; [ openjdk20 gradle_8 java-language-server ];
+}