Equals method in java

Invoking equals method in java is error prone, and most of the programmers that redefines equals do not do it well. This article explains how to implement equals method in java.

Is Ubuntu safe?

Who said that Linux is the most invincible OS that exists? Not Ubuntu, check this exploit. The only thing that I can state for sure is that there is a relation in the figures between popularity and exploits. As the popularity of the OS increases, the number of exploits also increases.