software-design

I want to demonstrate use of Adapter Pattern to my team. I've read many books and articles online. Everyone is citing an example which are useful to understand the concept (Shape, Memory Card, Electronic Adapter etc.), but there is no real case study. Can you please share any case study of Adapter Pattern? p.s. I tried searching existing questions on stackoverflow, but did not find the answer so posting it as a new question. If you know there's already an answer for this, then please redirect. Fuhrmanator Many examples of Adapter are trivial or unrealistic ( Rectangle vs. LegacyRectangle,

I came across different interview where question was asked to me why encapsulation is used? Whose requirement actually is encapsulation? Is it for users of program? Or is it for co-workers? Or is it to protect code from hackers? BartoszKP Encapsulation helps in isolating implementation details from the behavior exposed to clients of a class (other classes/functions that are using this class), and gives you more control over coupling in your code. Consider this example, similar to the one in Robert Martin's book Clean Code : public class Car { //... public float GetFuelPercentage() { /* ... */

I saw this thread If a "Utilities" class is evil, where do I put my generic code? and thought why are utility classes evil? Lets say I have a domain model that is dozens of classes deep. I need to be able to xml-ify instances. Do I make a toXml method on the parent? Do I make a MyDomainXmlUtility.toXml helper class? This is a case where the business need spans the entire domain model -- does it really belong as an instance method? What about if there are a bunch of auxiliary methods on the xml functionality of the application? Thomas Owens Utility classes aren't exactly evil, but they can

When developing for Android , you can set your target (or minimum) sdk to 4 (API 1.6) and add the android compatibility package (v4) to add support for Fragments . Yesterday I did this and successfully implemented Fragments to visualize data from a custom class. My question is this: what is the benefit for using Fragments as opposed to simply getting a View from a custom object, and still supporting API 1.5? For example, say I have the class Foo.java: public class Foo extends Fragment { /** Title of the Foo object*/ private String title; /** A description of Foo */ private String message; /**

Can someone please explain me what a software framework is? Why do we need a framework? What does a framework do to make programming easier? Neha Choudhary I'm very late to answer it. But, I would like to share one example, which I only thought of today. If I told you to cut a piece of paper with dimensions 5m by 5m, then surely you would do that. But suppose I ask you to cut 1000 pieces of paper of the same dimensions. In this case, you won't do the measuring 1000 times; obviously, you would make a frame of 5m by 5m, and then with the help of it you would be able to cut 1000 pieces of paper

This question already has an answer here: Resolve build errors due to circular dependency amongst classes 11 answers Do you have any good advice on how to avoid circular dependencies of header files , please? Of course, from the beginning, I try to design the project as transparent as possible. However, as more and more features and classes are added, and the project gets less transparent, circular dependencies start happening. Are there any general, verified, and working rules? Thanks. If you have circular dependency then you doing something wrong. As for example: foo.h ----- class foo {