Use explicit-type code blocks in a lot of obvious places (now that the Hub actually renders these _better_ than the no-type versions)

java/content.md

@@ -14,22 +14,28 @@ Java is a registered trademark of Oracle and/or its affiliates.
 
 The most straightforward way to use this image is to use a Java container as both the build and runtime environment. In your `Dockerfile`, writing something along the lines of the following will compile and run your project:
 
-	FROM java:7
-	COPY . /usr/src/myapp
-	WORKDIR /usr/src/myapp
-	RUN javac Main.java
-	CMD ["java", "Main"]
+```dockerfile
+FROM java:7
+COPY . /usr/src/myapp
+WORKDIR /usr/src/myapp
+RUN javac Main.java
+CMD ["java", "Main"]
+```
 
 You can then run and build the Docker image:
 
-	docker build -t my-java-app .
-	docker run -it --rm --name my-running-app my-java-app
+```console
+$ docker build -t my-java-app .
+$ docker run -it --rm --name my-running-app my-java-app
+```
 
 ## Compile your app inside the Docker container
 
 There may be occasions where it is not appropriate to run your app inside a container. To compile, but not run your app inside the Docker instance, you can write something like:
 
-	docker run --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp java:7 javac Main.java
+```console
+$ docker run --rm -v "$PWD":/usr/src/myapp -w /usr/src/myapp java:7 javac Main.java
+```
 
 This will add your current directory as a volume to the container, set the working directory to the volume, and run the command `javac Main.java` which will tell Java to compile the code in `Main.java` and output the Java class file to `Main.class`.