September 2018
Intermediate to advanced
802 pages
19h 30m
English
Content preview from Java 11 Cookbook - Second Edition
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How to do it...
- As the older versions of Java, Java 8 and before, don't support modules, so we would have to get rid of module-info.java if we were compiling on an older version. That is why we did not include module-info.java during our compilation. We compiled using the following code:
$ javac --release 8 -d mods srcdemocompacktCollectionsDemo.java
You can see that we are using the --release option, targeting Java 8 and not compiling module-info.java.
- Let's create a JAR file because it becomes easier to transport the java build instead of copying all the class files:
$jar --create --file mlib/demo.jar --main-class com.packt.CollectionsDemo -C mods/ .
- Let's run the preceding JAR in Java 9:
$ java -version java version "9" Java(TM) ...
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