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Questions tagged [car-analogy]

15 questions
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35 answers

What is a practical, real world example of the Linked List?

I understand the definition of a Linked List, but how can it be represented and related to a common concept or item? For example, composition (EDIT: originally said 'inheritance') in OOP can be related to automobiles. All (most) automobiles in…
JStims
24
votes
9 answers

OOP design problem

What is good design in this simple case: Let's say I have a base class Car with a method FillTank(Fuel fuel) where fuel is also a base class which have several leaf classes, diesel, ethanol etc. On my leaf car class DieselCar.FillTank(Fuel fuel)…
Marcus
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How to display all elements in an arraylist?

Say I have a car class with attributes make and registration, and i create an ArrayList to store them. How do I display all the elements in the ArrayList? I have this code right now: public Car getAll() { for(int i = 0; i < cars.size(); i++)…
Newtojava
18
votes
10 answers

How can I avoid dynamic_cast in my C++ code?

Let's say I have the following class structure: class Car; class FooCar : public Car; class BarCar : public Car; class Engine; class FooEngine : public Engine; class BarEngine : public Engine; Let's also give a Car a handle to its Engine. A…
Michael Kristofik
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Why stick to get-set and not car.speed() and car.speed(55) respectively?

Apart from unambiguous clarity, why should we stick to: car.getSpeed() and car.setSpeed(55) when this could be used as well : car.speed() and car.speed(55) I know that get() and set() are useful to keep any changes to the data member manageable by…
namespaceform
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Ruby: difference between @cars.each do |car| and for car in @cars do

(Sorry for the newbie question.) In Ruby, what is the difference between the loops: @cars.each do |car| and for car in @cars do ? is there a difference in efficiency, or why do we need two (or more) ways to express the same thing? The second way…
jacob
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OOP design : Car - Connection between Tank and Engine

I'm not sure whether I'm violating OOP conepts insanely. Say there is a Carclass which "has" an Engine and a Tank. When the Engine is operating , it will take oil from the Tank (say unit by unit per a cycle though oil is uncountable) How should the…
Dinushan
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How do I use composition with inheritance?

I'm going to try to ask my question in the context of a simple example... Let's say I have an abstract base class Car. Car has-a basic Engine object. I have a method StartEngine() in the abstract Car class that delegates the starting of the engine…
Rob Sobers
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Car steering algorithm?

i've already asked something similar, but now i've the problem to manage and realize a "realistic" steering for a simple 2d (top-down) car racing game. How can i do a "realistic" steering for the car ? (i use c# but another language is…
stighy
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The object oriented relationship

I was asked to describe the relationship between vehicle, car, toyota in object oriented programming term (let's say in php environment). I was stumped. Can someone help me about it? Thanks...
FlyingCat
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Whether to model a car object (and its parts such as engine) with has-a (composition) or is-a (inheritance)?

I am developing a class library which will include the object Car. The dilemma is, Car itself will be a class with fields such as Registration Number, and other general information on the car. But a car has an engine, chassis, etc. These objects…
GurdeepS
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How can I sort a 10 x 10 grid of 100 car images in two dimensions, by price and speed?

Here's the scenario. I have one hundred car objects. Each car has a property for speed, and a property for price. I want to arrange images of the cars in a grid so that the fastest and most expensive car is at the top right, and the slowest and…
CentralScrutinizer
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OOP Best Practices When One Object Needs to Modify Another

(this is a C-like environment) Say I have two instance objects, a car and a bodyShop. The car has a color iVar and corresponding accesors. The bodyShop has a method named "paintCar" that will take in a car object and change its color. As far as…
user185950
1
vote
3 answers

Simulating a Car (Java)

I'm working on a project to simulate a car. The requirements are to demonstrate the operation of a car by filling it with fuel and then run the car until it has no more fuel. Simulate the process of filling and running the car at different speeds.…
Mike
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Physics, turn like a car

I'm having difficulty getting the Chipmunk physics engine to do what I want. The only solution that appears to work requires some heavy vector math. Before diving into that rabbit hole for the other components of my game, I was hoping someone could…
Clev3r
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