1. Nice explanation of Collections in Java

    Here's a link to view it in more details …


  2. Plain and Simple about SQL types of joins


  3. Found a nice solution for monitoring selenium tests on headless linux machine

    Hey guys, found today from one of my colleagues a good tip about how to debug selenium tests with gui on headless linux. Maybe someone wil find it also helpful. Here's the link…


  4. Comparison of python json libs in performance

    I work a lot with json in python and never thought before about performance. I was using standard python json lib that goes right from the box, but today found out from one of my colleagues that there is way more faster lib called cjson. I got interested in this…


  5. Rotating a two-dimensional array in Python

    I was solving one of the learning tasks on Python and had to rotate two dimensional array clockwise. In Java i would have to loop over array and pass values into newly created array, but in Python i could solve this with one line of code : template = zip(*template[::-1]…


  6. Getting HTTP traffic details from tcpdump

    Yestarday i had one issue to verify where i had to make sure that our backend part is sending POST requests with id's to third party server.  Server didn't have GUI , so i couldn't use Wireshark for that ( or could, but just don't know how:) ) and i googled for…