Note: I have condensed this article into my person wiki: http://wiki.chacha102.com/Lambda - Enjoy I am having some troubles with Lambda style functions in PHP. First, This Works: $foo = function(){ echo "bar"; }; $foo(); Second, This Works: class Bar{ public function foo(){ echo "Bar"; } Third, This works: $fo...
I can do bit of coding in ruby. I just touched objects and I am not so object literate, I mean I do not think in objects yet :-) I have data that I scrape from the forum on regular basis. I need fields like author, date posted, title, category, number of views, etc etc = array in my point of view. Then I want to be able to these ...
Suppose I have a base class Person and I publicly inherit a class Teacher from base class Person. Now in the main function I write something like this // name will be passed to the base class constructor and 17 // is for derived class constructor. Teacher object(“name”,17) ; Teacher object1=object; //call to copy constructor Now ...
how do i model a baseball game and players in OO? ...
Should I put multiple statements in a try and then catch all possible exceptions, or should I put only one statement in the try statement? Example: try { MaybeThrowIOException(); MaybeThrowFooBarException(); return true; } catch (IOException e) { // ... } catch (FooBarException e) { // ... } Or try { MaybeThr...
Hi everyone, Based on the question (http://stackoverflow.com/questions/2068425/how-to-create-a-client-notification-service-for-a-webapp-or-should-i-use-an-obser) I will like to know. I have a fully implemented DAO with Entity beans containing only getters and setters method. Each entity is mapped to an EntityManager. Currently there ...
I'm working with a smallish type hierarchy, something like the following, and lets say there won't ever be any other Animal types in my sad safari-less world (I'm not at all worried about resilience to expanding): public abstract class Animal {}; public sealed class Dog : Animal {}; public sealed class Cat : Animal {}; public sealed cla...
class for example: class classname{ public: int N,M; }; classname a > classname b if a.N>B.N ...
When working in interface builder you can layout your interface with different types of objects but I'm unclear as to whether these are instances of objects or some sort of factory method or something like that. Basically if you use Interface builder to layout your objects, especially with subclasses of uiview, how do you refer to a spec...
I used to design my application around anemic domain model, so I had many repository object, which were injected to the big, fat, transaction-aware service layer. This pattern is called Transaction script. It's not considered a good practice since it leads to the procedural code, so I wanted to move forward to the domain driven design. ...
Here is the basic code i'm trying to make work: Field fields[] = SalesLetter.class.getDeclaredFields(); String fieldName; for (int j = 0, m = fields.length; j < m; j++) { fieldName = fields[j].getName(); //example fieldname [[headline]] templateHTML = templateHTML.replace(fieldName, Letter.fieldName()); } I believe I'm ...
When building dynamic websites I use a php include to make my connections to the database. The included file is very basic: mysql_connect($hostname = 'host', $username = 'user', $password = 'password'); mysql_select_db('database'); This works fine. In some places I use an AJAX system to create drag-and-drop reordering of databa...
Hi, I have a PHP Object with an attribute having a dollar ($) sign in it. How do I access the content of this attribute ? Example : echo $object->variable; // Ok echo $object->variable$WithDollar; // Syntax error :-( ...
I am using 'this' keyword for a long time. But when someone asks me to explain it, I am confused that how to explain it. I know that I can use this in a method of class to access any variable and method of the same class. class MyClass{ function MyMethod1(){ echo "Hello World"; } function MyMethod2(){ ...
I am developing an application in Java, in my GUI I have several JPanels with a lot of settings on them, this would be the View. There is only one Model in the background of these several JPanels. Normally, I would Observe the Model from the JPanels. I was just wondering, is it good practice to Observe View from the Model? Because, the...
Let's have an object created in a getter like this : public class Class1 { public string Id { get; set; } public string Oz { get; set; } public string Poznamka { get; set; } public Object object { get { // maybe some more code return new Ob...
I want to extend my function to a better design to where I can pass a canvas object into so I don't have to write N functions.. I'm not sure as how to do this properly I've come up with a naive design with a switch but even then if I add another canvas I still need to write new code for the new canvas. function fadeCanvasOut(event:Timer...
I'm trying to figure out the best way to design a couple of classes. I'm pretty new to Python (and OOP in general) and just want to make sure that I'm doing this right. I have two classes: "Users" and "User". class User(object): def __init__(self): pass class Users(object): def __init__(self): self.users = [] ...
From my reading, I understand JSON to only work with public attributes. Is there a way to get it to work with private attributes? Would the magic getter (__get) do this? TIA ...
In a system that accepts orders which have payments which have gateway transactions should the objects be like this: class Order(object): ... Inside init ... self.total_in_dollars = <Dollar Amount> self.is_paid = <Boolean Value> class Payment(object): ... Inside init ... self.order = order_instan...