Blog: java specialists

218 blogs updated: 20 min. ago
Issue 252 - New Year Day Spliterator
We build a simple custom Spliterator to allow us to stream over dates to find how many times the 1st of January was on a Monday.
01-01-2018 13:03:17 java specialists Beginners
Issue 251 - Collections.checkedCollection()
Since Java 5, we have been able to create collections that would check at runtime that the objects added were of the correct type. But very ...
30-11-2017 23:03:56 java specialists Beginners
Issue 250 - Learning Java with jshell
Java 9 has changed the way that new programmers can be introduced to Java. No more "public static void main(String[] args)", but instead a b...
26-10-2017 14:18:42 java specialists Beginners
Issue 249 - @Contended @since 9
Java 9 is more strict about what system internal classes we can use. So how can we use @Contended in Java 9? This article shows you how.
23-08-2017 22:08:45 java specialists Beginners
Issue 248 - Immutable Collections in Java 9
Java 9 now offers immutable lists, sets and maps. We look at how to create them and also how to do simple set operations like union and inte...
01-06-2017 00:00:29 java specialists Beginners
Issue 247 - Memory Puzzle with Lambdas
Just like inner classes, lambdas might also suffer from memory issues, but to a lesser extent. In this puzzle you need to figure out which l...
01-04-2017 00:12:40 java specialists Beginners
Issue 246 - LRU Cache From LinkedHashMap
The LinkedHashMap has an interesting feature, where we can order elements in "access order", rather than the default "insertion order". This...
28-02-2017 15:35:25 java specialists Beginners
Issue 245 - Surprising += Cast
Surprisingly, the compound arithmetic expression contains a cast that can produce some interesting side effects. In this newsletter we explo...
30-01-2017 21:37:51 java specialists Beginners
Issue 244 - Your Brilliant Java Career
My mother is a trained physiotherapist. Ergonomics and physical health has always interested me, even though like most of us, I struggle wit...
30-12-2016 23:59:30 java specialists Beginners
Hacking together a CircularArrayList (Video Tutorials)
For our 16th anniversary edition, we have produced three short video tutorials on how to build your own CircularArrayList in Java, based on ...
30-11-2016 19:40:54 java specialists Beginners

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