Variables
Variables, a term borrowed from mathematics, is what we use in software development to store data that change in the course of a program. It is, practically, hard to write code without using variables. Technically speaking, variables represent memory addresses, and they have two elements: an identifier and a data type.
The identifier is a convenient name that is used to access the value of the variable, and the data type defines what sort of data the variable holds. Delphi is a strongly and statically typed language. Strongly typed means that the developer defines the (data) type of the variable, ...
