If you do not understand any of the concepts, we recommend browsing the tutorial again. Once you’re conversant in the concepts discussed during this tutorial, you’ll advance .
There are many other computer programming-related topics that we didn’t purposely cover to avoid confusion. However, we are sure that these concepts won’t be difficult for you to know as long as you familiarize yourself with the concepts discussed during this tutorial.
At tutorialspoint we’ve tried very hard to make comprehensive tutorials for the programming languages C, Java and Python. We strongly recommend that you simply start either of the 2 after completing this tutorial.