In Visual Basic 2015 programming, we have to deal with all kinds of data. The data could be numbers, strings, time, currency and more. How do we store data then? In Visual Basic 2015, data can be stored as variables or as constants. Variables are like mail boxes in the post office. The content of the variable changes every now and then, just like the mail boxes. In Visual Basic 2015, variables are created in the specific areas allocated by the computer memory to store data.