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What's the best practice for primary keys in tables?
...s, I've developed a habit of having one column that is unique and that I make the primary key. This is achieved in three ways depending on requirements:
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What does Class mean in Java?
...Java language used to introspect itself): https://www.oracle.com/technetwork/articles/java/javareflection-1536171.html
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Why is Linux called a monolithic kernel?
I read that Linux is a monolithic kernel. Does monolithic kernel mean compiling and linking the complete kernel code into an executable?
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Hibernate Annotations - Which is better, field or property access?
...r I need.
Here's an example:
@Entity
public class Person {
@Column("nickName")
public String getNickName(){
if(this.name != null) return generateFunnyNick(this.name);
else return "John Doe";
}
}
Besides, if you throw another libs into the mix (like some JSON-converting lib or Bea...
OpenLayers vs Google Maps? [closed]
...ple of times, but what wondering about OpenLayers .
Before starting any kind of coding, here are a couple of questions that come to my mind,
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Javascript: How to check if a string is empty? [duplicate]
I know this is really basic, but I am new to javascript and can't find an answer anywhere.
5 Answers
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How to get the size of a string in Python?
...
If you are talking about the length of the string, you can use len():
>>> s = 'please answer my question'
>>> len(s) # number of characters in s
25
If you need the size of the string in bytes, you need sys.getsizeof()...
Text overwrite in visual studio 2010
...
If pressing the Insert key doesn't work, try doubleclicking the INS/OVR label in the lower right corner of Visual Studio.
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Display a float with two decimal places in Python
I have a function taking float arguments (generally integers or decimals with one significant digit), and I need to output the values in a string with two decimal places (5 -> 5.00, 5.5 -> 5.50, etc). How can I do this in Python?
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Proper way to initialize a C# dictionary with values?
...var myDict = new Dictionary<string, string>
{
{ "key1", "value1" },
{ "key2", "value2" }
};
Console.ReadKey();
}
}
Can you try to reproduce it in a simple Console application and go from there? It seems likely that you're targeting .NET 2....