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generate model using user:references vs user_id:integer
I'm confused on how to generate a model that belongs_to another model. My book uses this syntax to associate Micropost with User:
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background-size in shorthand background property (CSS3)
I'm trying to mix background-image and background-size properties in a shorthanded background property. Based on W3C documentation background-size should come after background-position property separated with an slash( / ).
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Why do Java webapps use .do extension? Where did it come from?
I have always wondered why so many Java developers use ".do" as the extension for their web controller (MVC) resources. Example: http://example.com/register.do
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Why use a prime number in hashCode?
I was just wondering why is that primes are used in a class's hashCode() method? For example, when using Eclipse to generate my hashCode() method there is always the prime number 31 used:
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When exactly are onSaveInstanceState() and onRestoreInstanceState() called?
The following figure (from the official doc ) describes the well-known lifecycle of an Android activity:
5 Answers
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“Delegate subtraction has unpredictable result” in ReSharper/C#?
When using myDelegate -= eventHandler ReSharper (version 6) issues:
3 Answers
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Is right click a Javascript event?
Is right click a Javascript event? If so, how do I use it?
18 Answers
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how to use XPath with XDocument?
There is a similar question, but it seems that the solution didn't work out in my case: Weirdness with XDocument, XPath and namespaces
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Futures vs. Promises
I'm confusing myself with difference between a future and a promise.
1 Answer
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Java unchecked: unchecked generic array creation for varargs parameter
I have set Netbeans to show unchecked warnings in my Java code, but I am failing to understand the error on the following lines:
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