C# TutorialLesson 15Free preview

C# If...Else

This lesson is part of C# · All levels

Summary

The if structure checks a condition and runs a block of code when the condition is correct, while the else provides a backup line. Many conditions can be arranged in a sequence using the otherwise if. C# also allows for the if to be narrowed, but it should be made less deep so that logic remains easy to read.

Key points

If (condition) running block when condition is worth true.
Else if checks the next condition only when the entire previous condition is false.
Else becomes the last unconditional option, similar to default.
The condition must produce a bool; numbers cannot be used directly as in the old C language.
If the bias is to be limited, the logic should be easily tested and treated.

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