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C# Inheritance

Syntax

class A
{
    int aVariable;
    public A()
    {
    }
    public void SomeMethodA()
    {
    }
}
class B : A
{
    int bVariable;
    public B()
    {
    }
    public void SomeMethodB()
    {
    }
}

B inherits from A or in other words B extends A.

C# supports single inheritance, a class can inherit from only one class. But a class can inherit multiple interfaces.

In above example, B inherits variableA and SomeMethodA also it adds bVariable and SomeMethodB.

Constructors are not inherited.

Inherited methods can be overridden.

A class can inherit only from another class not struct.

A class without explicit base class inherits from class Object.

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Categories: C#
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