class Archives - Page 3 of 11

Java: how do I get a class literal from a generic type?

Typically, I’ve seen people use the class literal like this: Class<Foo> cls = Foo.class; But what if the type is generic, e.g. List? ...

May 24, 2022
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Check if a Class Object is subclass of another Class Object in Java

I’m playing around with Java’s reflection API and trying to handle some fields. Now I’m stuck with identifying the type of my fields. ...

May 24, 2022
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How to create a custom string representation for a class object?

Consider this class: class foo(object): pass The default string representation looks something like this: >>> str(foo) "<class '__main__.foo'>" How can I make this ...

May 22, 2022
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How do I get a PHP class constructor to call its parent’s parent’s constructor?

I need to have a class constructor in PHP call its parent’s parent’s (grandparent?) constructor without calling the parent constructor. // main class ...

May 22, 2022
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Swift: Test class type in switch statement

In Swift you can check the class type of an object using ‘is’. How can I incorporate this into a ‘switch’ block? I ...

May 21, 2022
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Why use ‘virtual’ for class properties in Entity Framework model definitions?

In the following blog: http://weblogs.asp.net/scottgu/archive/2010/07/16/code-first-development-with-entity-framework-4.aspx The blog contains the following code sample: public class Dinner { public int DinnerID { get; set; } ...

May 21, 2022
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What is the difference between functions and classes to create reusable widgets?

I have realized that it is possible to create widgets using plain functions instead of subclassing StatelessWidget. An example would be this: Widget ...

May 21, 2022
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‘POCO’ definition

Can someone define what exactly ‘POCO’ means? I am encountering the term more and more often, and I’m wondering if it is only ...

May 20, 2022
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Java: Multiple class declarations in one file

In Java, you can define multiple top level classes in a single file, providing that at most one of these is public (see ...

May 20, 2022
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difference between variables inside and outside of init()

Is there any difference at all between these classes besides the name? class WithClass (): def __init__(self): self.value = "Bob" def my_func(self): print(self.value) ...

May 19, 2022
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