you type sout + tabulator and IDEA inserts the code snippet (). If you don’t already know what it is: Live Templates are shortcuts for commonly used code snippets. IntelliJ IDEA comes with a handy feature called Live Templates. So let’s see how we can utilize IDEA to solve this problem for us. IntelliJ IDEA claims to be the most intelligent Java IDE.

All important terminal operations are directly accessible on the stream itself for convenience.

Brian? ಠ_ಠĪs a side note: Stream.js is a JavaScript port of the Java 8 Streams API for the browser and addresses the described issue nicely. So I really hope some of the more convenient collectors will make it’s way into the Stream interface in Java 9. There’s a method toArray() but no toList(). This might look like a minor imperfection at first but it gets really annoying if you have to use this kind of stuff over and over again. So I really cannot understand the design decision not to integrate those methods directly into the Stream interface so you could just write: stringCollection There’s a utility class Collectors, providing a bunch of convenient collectors like toList, toSet, joining and groupingBy.įor example this code filters over a collection of strings and creates a new list: stringCollectionĪfter migrating a project with 300k lines of code to streams I can say that toList, toSet and groupingBy are by far the most used terminal operations in our project. And Streams are a great way to improve code readability of all those collection crunching.īut one thing about streams really bothers me: Streams only provide a few terminal operations like reduce and findFirst directly while others are only accessible via collect. Collection operations are all around the place in almost any codebase I’ve ever seen. The most used feature besides lambdas is the new Stream API.

We also use Nashorn to dynamically script parts of our application which may change during runtime. Since then we’ve migrated major parts of our code base to lambda expressions, streams and the new Date API. At Pondus we’ve managed to update all of our production servers to this new version back in May 2014. Java 8 has been released almost one year ago in March 2014.

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