Tag Archives: java

Let’s make the stack explode in Java!

Posted on February 28, 2017 by bitjunkie

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 →

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A simple way to obfuscate string literals

Posted on December 25, 2016 by bitjunkie

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 →

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Let’s make the heap explode!

Posted on December 5, 2014 by bitjunkie

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 →

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Regular Expressions

Posted on October 28, 2013 by bitjunkie

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 →

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A Beginner’s Guide to Object Oriented Programming (1)

Posted on October 3, 2012 by bitjunkie

What’s so fancy about Object Oriented Programming? Computers have been invented to help real-world people solving real-world problems, even though it seems today that computers actually contribute problems to the real world. Since a plain computer doesn’t know anything about … Continue reading →

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Conditional Assignments

Posted on February 16, 2011 by bitjunkie

Many programs require implementing some code which assigns values to variables based on certain conditions. Here is an example: if( a < 5 )    b = 3; else    b = 8; The same in abbreviated form (Java): b … Continue reading →

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Loops

Posted on February 10, 2011 by bitjunkie

A loop allows to repeatedly execute a sequence of instructions. From the CPU’s view a loop simply means resetting the program counter (PC) which always points to the currently executed instruction. ; Example in some pseudo assembly language ; showing … Continue reading →

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