3.9.Summary

A variable is an identifier with a type that holds a value of that type. Simple types include the integrals, floating points, decimal, and bool. C# has several mathematical and logical operators that participate in forming expressions. C# also offers the single dimension, multi-dimension and jagged array types.

In this lesson you learned how to write simple statements and code a program that works linearly from start to finish. However, this is not as useful as it can be because you need to be able to make decisions and execute different blocks of code depending on different conditions. I invite you to return for Lesson 3: Control Statements – Selection, where you can learn how to branch your logic for more powerful decision making.

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