It is fairly common in unit testing to test that a particular unit throws an exception under certain conditions.
Once in a while, though, you want to make sure that no exception occurs at all, and you have some idea of what exceptions might occur in the early stages of…
What has recently happened on Jeopardy! has had me thinking about how to quantify sportsmanship. Of course it’s impossible to boil sportsmanship down to a single number. The attempt might still be worthwhile.
People fixate on the amount of money a contestant wins on Jeopardy! and seem not to care…
TestNG is one of the most highly regarded unit testing frameworks for Java. Even the so-called “critical reviews” come across as favorable reviews.
Yet a lot of Java programmers don’t know much about TestNG other than that it’s available. Maybe that’s you, that was me very recently. …
It’s that time of the year again, with the pumpkin lattes, Oktoberfest and of course Hacktoberfest, sponsored by Digital Ocean, AppWrite, Intel and DeepSource. Here’s the description from the official Hacktoberfest website:
Support open source throughout October!
Hacktoberfest encourages participation in the open source community, which grows bigger every year…
I’m working on a computer chess program. Right now I’m in the research phase. I don’t know if I’m going to use machine learning for this. But if I do, I will need chess puzzles.
The easiest chess puzzles, in my opinion, are endgame puzzles. Especially those in which both…
Yesterday, September 14, was the official release date of Java 17, the first Long Term Support (LTS) release in what feels like ages (the previous LTS release was Java 11, which came out three years ago).
One of the new features of Java 17 is the addition of sealed classes…
We’re less than a week away now from the official release of Java 17, the first Long Term Support (LTS) release of Java since Java 11. On September 14, 2021, the Java 17 runtime environment (JRE) and development kit (JDK) will be available for download and installation.
Reading over the…
The most famous Java class is probably String. The second most famous is ArrayList<E>, from the java.util package. That class combines the speed and reliability of arrays with the sizing flexibility of linked lists.
There is no point in reinventing ArrayList<E>, other than that it is an excellent programming exercise…
Maybe you already know about how you can use the Tab key to complete partial typing on the Windows command prompt. Or maybe you don’t know this.
If you are a computer programmer who mostly uses Windows and you don’t already know about this, you need to read this article…
One of the nice things about java.util.ArrayList is that you can iterate through the contents of a list with an “enhanced” For loop called the “For Each” loop. For example, given
ArrayList<Transaction> trx = account.getTransactions();instead of having to write
CurrencyAmount bal = ZERO_DOLLARS;
for (i = 0; i < trx.size()…
