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Questions - open-closed-principle

How can I make this small pseudocode comply with Liskov principle?

Keeping things tidy and simple, here is my initial Java pseudocode as an example: public abstract class Vehicle { private String owner; private id plate; public removeVehicle()...
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BadProgrammer

java

solid-principles

liskov-substitution-principle

open-closed-principle

Votes: 0

Answers: 1

Latest Answer

According to "Functions that use pointers or references to base classes must be able to use objects of derived classes without knowing it." see https://en.wikipedia.org/wiki/SOLID The targ...
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jonas

C++ How can I combine and add functionality to the same inherited method by a class with multiple inheritance?

So say I have the class empire. empire inherits populationContainer and landContainer as such: class empire : public populationContainer, public landContainer Both of those parent classes have the me...
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Justin Iaconis

c++

multiple-inheritance

open-closed-principle

Votes: 0

Answers: 3

Latest Answer

My solution would be: // If you add more base classes here, add them also to the 'update' method class empire : public populationContainer, public landContainer
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Paul Sanders

How to avoid if..else(or any conditionals) while deciding which method to be called?

How to follow Open Close Principle without violating LSP while deciding which method to be invoked with different parameters in a statically typed language? Consider the requirement like Action 1: pe...
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Mani

oop

if-statement

duck-typing

liskov-substitution-principle

open-closed-principle

Votes: 0

Answers: 2

Latest Answer

A simple solution would be to define a strategy, which execute the code currently contained in the if / else if / else branches: interface Strategy { String getType(); void apply(); } The strateg...
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Florian Salihovic

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