Java abstract class and interface
Java abstract class and interface and their difference.
Extract the i-th digit of integers
Extract the i-th digit of any integers, where i starts from right to left.
HTML div and span
Introduction to html div and span elements and their differences.
Python encoding and unicode
Python source code encoding and unicode in 2.x.
CSS placement
Three kinds of css placement in HTML.
Python main
What the if __name__ == '__main__'does in python and practice of defining
python main functions.
Python function arguments
Python function standard arguments, positional arguments, and keyword arguments.
Selenium xpath selector
Selenium web element locating strategy using xpath.
Python aop with decorators
Python AOP (aspect oriented programming) with decorators.
Selenium css selector
Selenium web element locating strategy using css selector.