C# ClassesLesson 27Free preview

C# Constructors

This lesson is part of C# · All levels

Summary

A constructor is a special method that runs automatically when an object is created with new, and the name is exactly the same as the name of the class. When there's no constructor written, C# makes the default constructor without parameters. The constructors can overload and call each other with this or base syntax to avoid duplication of code.

Key points

The constructor has no type return and its name is exactly the same as the class name.
The automatic default constructor is available when the class does not define any constructor.
Parametric constructors allow objects to be directly filled with data as they are created.
Constructor chaining uses this(...) to call another constructor in the same class or base(...) for the parent constructor.
Static constructors run once when the class is first used.

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