Without wasting time, let me move to what variables are.Variables are containers for data items. Some of you will frown at the sight of this with the question “What does this statement mean?” Do not worry, I'll explain it.
Imagine you went to market and purchased a new backpack (some people call this bag) which you are to use in school (as a student). This backpack is a container (variable) and whatever school item you put in it, be it book(s) and/or pen(s) are the variable item(s).