Optional parameter in abstract class overriding derived
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Why are C# 4 optional parameters defined on interface not enforced on implementing class?
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Can I call a base class's virtual function if I'm overriding it?
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Overriding and Inheritance in C#
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Run-time Polymorphism in Java without "abstract"?
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Named and optional parameters, and WCF
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Polymorphism vs Overriding vs Overloading
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Constructor-style casting in function call parameters
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Inheriting non-implicit constructors on Apex classes
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How to pass a default argument value of an instance member to a method?
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Why an abstract class implementing an interface can miss the declaration/implementation of one of the interface's methods?
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Why is method overloading and overriding needed in java?
155563
When calling super() in a derived class, can I pass in self.__class__?
141587
Is there any reason to declare optional parameters in an interface?
75006
Is there a way to prevent a method from being overridden in subclasses?
77932
Overloading and overriding
54459
Can java call parent overridden method in other objects but not subtype?
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Default constructors and inheritance in Java