Hour 13. Performing Arithmetic, String Manipulation, and DateTime Adjustments

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Hour 13. Performing Arithmetic, String Manipulation, and Date/Time Adjustments

Just as arithmetic is a necessary part of everyday life, it's also vital to developing Windows programs. You probably won't write an application that doesn't add, subtract, multiply, or divide some numbers . In this hour, you'll learn how to perform arithmetic in code. You'll also learn about order of operator precedence, which determines how C# evaluates complicated expressions (or equations). After you understand operator precedence, you'll learn how to compare equalities ”something you'll do all the time.

Boolean logic is the logic C# itself uses to evaluate expressions in decision-making constructs. If you've never programmed before, Boolean logic may be a new concept to you. However, in this hour I explain what you need to know about Boolean logic to create efficient code that performs as expected. Finally, I show you how to manipulate strings and work with dates and times.

The highlights of this hour include the following:

• Performing arithmetic

• Understanding the order of operator precedence

• Comparing equalities

• Understanding Boolean logic

• Manipulating strings

• Working with dates and times

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