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Core Java
To See a World in a Grain of Sand: Once Again Hello World
“To see a world in a grain of sand”, and we would probably see a world in the simplest “Hello…
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Core Java
Behind-the-Scenes Secrets of Jsoup V: Tips & Tricks of Optimization
We have done things right, now it’s time to do things faster. We would keep Donald Knuth‘s warning in mind,…
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Core Java
A Simple Approach to Simulate User Input and Check Output
Recently some of my students asked me about the mechanism of unit test provided by MOOC from University of Helsinki,…
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Software Development
Fibonacci and BigInteger: Secret Under the Hood
No matter what programming language you are learning, Fibonacci numbers calculation is just too classic to skip. It seems very…
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