Category Archives: Programming Essentials

Let’s make the stack explode in Java!

Posted on February 28, 2017 by

In one of my lectures about memory management in Java, I was looking for a quick and simple way to demonstrate the influence of local variables on the stack memory usage. So what came to my mind was this: Local … Continue reading →

Posted in Java, Programming Essentials | Tagged , , , , ,

A simple way to obfuscate string literals

Posted on December 25, 2016 by

By Andre M. Maier While I was sitting in a doctor’s waiting room last week, it occurred to me that I could send out a geeky holiday greeting to my younger programming students. Naturally, as a teacher, I wanted to … Continue reading →

Posted in Information Theory, Java, Programming Essentials | Tagged , , , , ,

Let’s make the heap explode!

Posted on December 5, 2014 by

This blog entry is dedicated to those who teach computer science at high schools and vocational schools. In one of my Java programming classes, only few of the students showed up. It didn’t seem to make sense to continue with … Continue reading →

Posted in Java, Linux, Programming Essentials, Uncategorized | Tagged , , , , ,

Regular Expressions

Posted on October 28, 2013 by

At the very beginning of this post I’d like to point out that this is neither related to a specific programming language nor related to a specific operating system, although I’ll need to employ some “real-world” examples for better understanding. … Continue reading →

Posted in Programming Essentials, Uncategorized | Tagged , , , , , ,

Pointers and References – Part 4 (Hacker Stuff) ;)

Posted on July 2, 2013 by

Ok, guys … party’s over. Some of you have requested some more in-depth stuff on pointers, so here we go: Function Pointer Arrays. Depending on your previous programming experience, Function Pointer Arrays (FPA) may seem a bit nerdy to you. … Continue reading →

Posted in Pointers, Programming Essentials, Uncategorized | Tagged , , ,

A Beginner’s Guide to Object Oriented Programming (2)

Posted on April 27, 2013 by

Long time no see. I hope you still remember my recent posting on object-oriented programming. Here is part two, which I hope you are interested in. Today, we are going to have a look at inheritance. If you do not … Continue reading →

Posted in Programming Essentials, Uncategorized | Tagged , , | Leave a comment

Subroutines, Functions, Methods

Posted on February 17, 2013 by

Most, if not all, programming languages allow you to create subroutines, functions, or methods, all of which follow the same principle. You can think of them as black-boxes that contain source code to perform a specific task. For example, you … Continue reading →

Posted in Programming Essentials, Uncategorized | Tagged , , , , , , ,