Arrays are an important part of Pascal. You can think of them like a catalogue of information. Arrays are declared under the typesection. They are a collection of a number of variables, arranged in the form of a table.

This is an example of declaring an array in the type block. The array called 'integerArray' is like a list of integers, if seen on paper it might look like this...

1.______20
2.______145
3.______39
4.______2708
5.______25
6.______260
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30._____300

The array called integerTable can be represented by a table. It is a two dimensional array. You can have three,four or even five dimensions in an array if you want.

OK HERE COMES AN EXAMPLE PROGRAM

Program classTest; {An example program demostration arrays} {Takes scores from a class test and tells people if they passed or not} uses Crt; type testScores = array[1..10] of integer; var i : integer; marks : testScores; passOrFail : string[6]; begin clrscr; for i := 1 to 10 do begin     write ('Please enter test score number ',i,': ');     readln(marks[i]); end; for i := 1 to 10 do begin     if (marks[i] < 50) then       passOrFail := 'Failed';     else       passOrFail := 'Passed';     writeln ('Student no.',i,' ',passOrFail); end; while not keypressed do;   end.

Arrays can also be declared in the variables section without making a type. However it is better to use a type if you plan to use the same type of array in multiple places. So this code in the last program...

 type