Arrays allow a developer to refer to a series of variables by the same name and to use a number (an index) to tell them apart.
In most scenarios, you declare an array as a variable - thus allowing for array elements to be changed at run-time.
Sometimes, you need to declare a constant array - a read-only array. You cannot change the value of a constant or a read-only variable. Therefore, while declaring a constant array you have to initialize it.
The tip shows you how to Declare and Initialize Constant Arrays in Delphi