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Is it better to return null or empty collection?
...' in c# never means something specific. The value null is defined as "no information" and hence to say that it carries specific information is an oximoron. That's why the .NET guidelines state that you should return an empty set if the set is indeed empty. returning null is saying: "I don't know whe...
What is the difference between dynamic and static polymorphism in Java?
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Polymorphism:
Polymorphism is the ability of an object to take on many forms. The most common use of polymorphism in OOP occurs when a parent class reference is used to refer to a child class object.
Dynamic Binding/Runtime Polymorphism :
Run time Polymorphism also known as method overriding. ...
What does it mean when an HTTP request returns status code 0?
... of things which could cause this, but based off of your description, some form of firewall seems the most likely culprit.
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What are the pros and cons of the leading Java HTML parsers? [closed]
...ntly recommended by various parties. Unfortunately it's hard to find any information on the strengths and weaknesses of the various libraries. I'm hoping that some people have spent some comparing these libraries, and can share what they've learned.
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Writing Unicode text to a text file?
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@quasistoic where does the file method come form?
– Omar Cusma Fait
Oct 3 '19 at 10:09
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Convert a string to int using sql query
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Django auto_now and auto_now_add
...to the XxAdmin class. I read it too quickly and tried to add it to my AdminForm or ModelForm classes and had no idea why they weren't rendering the "read only fields". BTW, is there a possibility to have true "read-only fields in a form?
– Tomasz Gandor
Mar 4 '...
Convert Dictionary to semicolon separated string in c#
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Nice :-) However, I'd use String.Format("{0}={1}", x.Key, x.Value) instead of the + operator
– Amittai Shapira
Oct 6 '10 at 11:14
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Python 2.7: Print to File
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Reading Excel files from C#
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var fileName = string.Format("{0}\\fileNameHere", Directory.GetCurrentDirectory());
var connectionString = string.Format("Provider=Microsoft.Jet.OLEDB.4.0; data source={0}; Extended Properties=Excel 8.0;", fileName);
var adapter = new OleDbDataAd...