Learn Delphi Programming | Unit 17.1 | Introduction to Arrays in Delphi

Learn Delphi Programming | Unit 17.1 | Introduction to Arrays in Delphi

In this lesson I introduce you to the basic concepts of arrays in Delphi code. We learn the following concepts:
1 - What is an Array?
2 - Why do we need Arrays?
3 - Type of Arrays
4 - How to declare Arrays
5 - How to populate Arrays
6 - Using Arrays
7 - Simple Array Project

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[zabratara]

Just started with this at school so this helps alot. Can't wait to see how it works with textfiles

[edutubesa]

Love your work and approach. I have watched nearly every video on your Delphi 10 play list (96) in July. I have a question, Something I am suck with. I am sure it is a simple solution.
I have a frmUnit1 and dmUnit1. dmUnit1 is declared under Users in frmUnit1.
dmUnit1 has ADOConnection1 ADOQuery1 and DataSource1
Everything works however if I add ADOQuery1.Active := True; in frmUni1 I get E2003 Undeclared identifier: 'ADOQuery and E2029 Cannot assign to a read-only property

I just added var ADOQuery1: TADOQuery; That solved the E2003 and E2029 errors.

But if I run the app, I get Access violation at address 0C00200 and Read of address 0C00200

Please Help. Thanks