When using a variable, it must first be set to before usage. To summarize, there are three key tasks in every program: (1) research; (2) implementation; and (3) evaluation.

Microsoft Visual C#
7th Edition
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Joyce, Farrell.
Chapter3: Using Gui Objects And The Visual Studio Ide
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When using a variable, it must first be set to before usage. To summarize, there are three key tasks in every program: (1) research; (2) implementation; and (3) evaluation.

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