Adding Java Desktop by Ifnu Bima (#3876)

* Adding Java Desktop by Ifnu Bima

Adding Java Desktop by Ifnu Bima

* fix link, alphabetize

* pdf indication

Co-authored-by: Eric Hellman <eric@hellman.net>

free-programming-books-id.md

@@ -71,6 +71,7 @@
 
 ### Java
 
+* [Java Desktop](https://github.com/ifnu/buku-java-desktop/raw/master/java-desktop-ifnu-bima.pdf) - Ifnu Bima (PDF)
 * [Pemrograman Java](https://blog.rosihanari.net/download-tutorial-java-se-gratis/) - Rosihan Ari Yuana