As I was reverse engineering some proprietary Java code that I only had the binaries for. Being able to view the .class files as hex and see the plain text contents of all the String objects made it much easier to figure out what was going on. This reminded me of a simple but old… Read the full article
There seems to be dozens of new questions about how to use `Scanner` on Stackoverflow every day. All of them duplicates of the hundreds of questions already asked about how to use this class and it is confusing API. Probably some new text book this year is causing this torrent of craptastic questions from anonymous… Read the full article
The argument rages on still to this day about checked exceptions in Java. Personally I think they have always been a bad idea. Python gets along fine without checked exceptions, and I love me some Python. The Java developers don’t even get the concept of checked exceptions correct most of the time and the SDK… Read the full article
All the code on this site is now hosted at gist.github.com!
The following is the source code for a javax.management.ObjectName serializer that recursively serializes and is a good example of how to avoid circular references. This is specifically aimed at dumping the DomainRuntimeServiceMBean and the RuntimeServiceMBean servers from Weblogic 11g, but it should work with any JMX standards compliant MBServer implementations.
As detailed in this question on StackOverflow.com, I am dynamically loading data into a series of dropdowns via AJAX. The problem is I want the user to be able to select the first element in the list, but it becomes the default selection and you can’t select it until you have selected some other item… Read the full article
I can’t count how many times I have looked at some code that gets it so wrong in so many ways and is completely excused because the team or individual is putting in a tremendous effort, doing it wrong. Of course the doing it wrong part gets left out, but the fact remains, that they… Read the full article
I found a small template snippet that worked great for getting the length of an array in C++ without having to store the size in a separate variable. But one thing wasn’t working, calling that template function on an array passed into a function/method as an parameter. The helpful denizens of stackoverflow.com came to my… Read the full article
This some considerable noise on the internet about Fluent APIs and using them. There was a question on stackoverflow.com about how to enforce calling all the required methods to guarantee you fully materialize an object when using a Builder Pattern with a Fluent API approach. The appropriate way to achieve this is through Interfaces that… Read the full article
Where is final used? There are a lot of Java developers that don’t understand the keyword final. The keyword final is one of your greatest allies in writing bug free maintainable code. It makes reading code much more deterministic and step debugging a breeze. And it makes your code side effect free. Side effects are… Read the full article