JJUG CCC 2015 Fall http://www.java-users.jp/?page_id=2056
Functional programming allows for quasi-declarative programming in a general purpose language. By using powerful fluent APIs like Java 8’s Stream API, or jOOλ’s sequential Stream extension Seq or more sophisticated libraries like vavr or functionaljava, we can express data transformation algorithms in an extremely concise way. Compare Mario Fusco’s imperative and functional version of the same alg
we write about the things we build and the things we consume I finally got to play with Java 8 streams and lambdas in more than a “Hello, World” way a couple of weeks ago. It was all pretty basic stuff—a map here, a few filters there, a sprinkling of counts—but it’s lovely to finally have first-class support for things we’ve been using in Guava for years, and lambdas make the syntax much more ters
Every Friday, we’re showing you a couple of nice new tutorial-style Java 8 features, which take advantage of lambda expressions, extension methods, and other great stuff. You’ll find the source code on GitHub. Debates about the usefulness of ORM (Object-Relational Mapping) have been going on for the last decade. While many people would agree that Hibernate and JPA solve a lot of problems very well
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