Blog: java specialists

235 blogs updated: 54 min. ago
Issue 273 - Truly Public Methods
Class.getMethods() returns all the public methods in this class and the classes in its ancestry. However, we cannot necessarily call these m...
01-10-2019 21:24:49 java specialists Beginners
Issue 272 - Hacking Enums Revisited
In a previous newsletter, we looked at how we could dynamically add new enums and also rewire affected switch statements. Due to improvement...
07-09-2019 14:20:56 java specialists Beginners
Issue 271 - HttpClient Executors
Java 11 added the HttpClient to give us a better way to send HTTP requests. It supports asynchronous and synchronous mode. HTTP2 comes out o...
21-08-2019 14:52:49 java specialists Beginners
Issue 270 - Excursions into Deduplication
When are Strings deduplicated? How can we find out whether they are of any benefit in our application? How much does it cost in terms of CPU...
31-05-2019 21:04:13 java specialists Beginners
Issue 269 - Heterogeneous Comparisons
The compareTo() function has three rules. Break any one of them and you might get an exception when you sort. In this newsletter we explore ...
29-04-2019 13:27:48 java specialists Beginners
Issue 268 - Puzzle: Is a Programmer a Person?
In today's puzzle, we want to sort a list of persons. It works in some versions of Java, but not in others. You need to figure out why.
06-03-2019 17:11:02 java specialists Beginners
Issue 267 - Performance Impact of Design Patterns
The Java Development Kit is filled with great examples of how design patterns can be used to make the Java code easier to maintain. But what...
18-02-2019 15:28:09 java specialists Beginners
Issue 266 - Threading Questions in Job Interviews (2/2)
In our previous newsletter, we showed 14 typical questions that interviewers ask to find out if we know threading. Here are our model answer...
12-02-2019 20:53:30 java specialists Beginners
Issue 265 - Threading Questions in Job Interviews (1/2)
Asking detailed threading questions during an interview is like asking a football player to prove that he can sing well. Not necessarily rel...
07-01-2019 15:07:10 java specialists Beginners
Issue 264 - 2018 Retrospective - Living Entrepreneurially
Our lives are so busy, we sometimes forget to stop and smell the roses. Let's take a moment to look back at how far we have come in the last...
19-12-2018 15:57:09 java specialists Beginners

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