====== Java ======

===== EJB =====
[[Mastering Enterprise JavaBeans 3.0]] - ein Konspekt vom Buch: ( C:/Users/kalaschnikow/Desktop/books/MasteringEJB4thEd.pdf or with backslashes: C:\Users\kalaschnikow\Desktop\books\MasteringEJB4thEd.pdf )


===== Functional programming =====

[[https://www.javaworld.com/article/3314640/functional-programming-for-java-developers-part-1.html|Functional programming for Java developers, Part 1]] from JavaWorld

[[https://developer.ibm.com/articles/j-java8idioms1/|An easier path to functional programming in Java]] by Venkat Subramaniam (should be good)

==== Java Stream API ====
[[https://www.journaldev.com/2774/java-8-stream|Java 8 Stream]] (a tutorial by [[https://journaldev.com|journaldev.com]])

==== Functional Interfaces ====
[[https://www.journaldev.com/2763/java-8-functional-interfaces|Java 8 Functional Interfaces]] (a tutorial by [[https://journaldev.com|journaldev.com]])

[[https://dzone.com/articles/cheatsheet-java-functional-interfaces|Cheatsheet: Java Functional Interfaces]]

=== Cheatsheet ===

See also [[https://docs.oracle.com/javase/8/docs/api/java/util/function/package-summary.html|java.util.function Package Summary]]

FUNCTION -> result and one (or two) argument(s) //types are different// (17 variants)

PREDICATE -> takes one (or two) argument(s) and //returns a boolean// (5 variants)

UNARY OPERATOR -> result and single argument //types are same// (4 variants)

BINARY OPERATOR -> //same as UNARY, but with two arguments//, result and both argument types are the same (4 variants)

SUPPLIER -> takes //no arguments//, returns a value ( 5 variants )

CONSUMER -> takes one (or two) arguments and //returns no value// (8 variants)

===== Tools =====

==== KeyStore Explorer ====

http://keystore-explorer.org/ - KeyStore Explorer is an open source GUI replacement for the Java command-line utilities keytool and jarsigner. KeyStore Explorer presents their functionality, and more, via an intuitive graphical user interface.