January 2020
Beginner
672 pages
18h 17m
English
Content preview from Sams Teach Yourself Java in 21 Days (Covers Java 11/12), 8th Edition
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Appendix B. Fixing Package Not Visible Errors in NetBeans
Since Java 9, a new feature called modules enables Java programs to indicate which parts of the Java Class Library they require and what class packages they export.
Modules also can be used to access Java packages in the class library that aren’t normally available. In Lesson 17, “Communicating Over HTTP,” the experimental support for the new HTTP client was not usable in a programming project until the module jdk.incubator.httpclient was added to that project. This appendix covers what to do when a Java project in NetBeans experiences an error because a module is not available.
Adding Module Info
The Java Class Library includes hundreds of packages. A small number of them are usable ...
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