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   ► KBTo/From GuidesDelphi Prism  Print This     

Array (Delphi Prism and Corel Paradox Cross Reference Guide)

By Mike Prestwood

Delphi Prism versus Corel Paradox: A side by side comparison between Delphi Prism and Corel Paradox.

Data Structures

Data structures allow you to store and work with data. Common data structures include arrays, associative arrays, etc.


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A data structure in which individual values (called elements or items) may be located by reference to one or more integer index variables, the number of such indices being the number of dimensions in the array.

Arrays can start with an index value of 0 or 1, sometimes referred to as 0 based or 1 based.

[Not specified yet. Coming...]
Corel Paradox:   Array[] type

Arrays in ObjectPAL use a 1-based subscript (also known as an index). Use [] with a subscript to refer to an element (i.e. MyArray[1], MyArray[2]).

The number of elements for a given array in ObjectPAL are either fixed or resizeable. Specify the size when you declare it for fixed. Use size() to get the number of elements, size() returns 0 if the array has no elements. Use setSize(), grow(), addLast(), etc. to add elements to an array.

Syntax Example:

  MyArray Array[4] String ;Fixed size array.
  i LongInt

MyArray[1] = "Mike"
MyArray[2] = "Lisa"
MyArray[3] = "Felicia"
MyArray[4] = "Nathan"

if MyArray.size() > 0 then
  for i from 1 to MyArray.size()
    msgInfo("", MyArray[i])

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