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What is the difference between an interface and a class, and why I should use an interface when I ca
I am aware that this is a very basic question, but an interviewer asked me in a very trick way and I was helpless :(
16 Ans...
The JPA hashCode() / equals() dilemma
There have been some discussions here about JPA entities and which hashCode() / equals() implementation should be used for JPA entity classes. Most (if not all) of them depend on Hibernate, but I'd like to discuss them JPA-implementation-neutrally (I am using EclipseLink, by the way).
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Ruby on Rails and Rake problems: uninitialized constant Rake::DSL
I'm having a really frustrating issue: Rake is being dumb.
19 Answers
19
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Google Maps Android API v2 Authorization failure
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Why is it considered a bad practice to omit curly braces? [closed]
Why does everyone tell me writing code like this is a bad practice?
52 Answers
52
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Spring - @Transactional - What happens in background?
I want to know what actually happens when you annotate a method with @Transactional ?
Of course, I know that Spring will wrap that method in a Transaction.
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Google Maps: how to get country, state/province/region, city given a lat/long value?
I need a list of countries, states & cities based on a collection of lat/long values I have. I need to store this information in a manner that hierarchy is preserve and without duplicates (e.g. "USA" and "United States" and "United States of America" are the same country; I only want one instance of...
How do I determine file encoding in OS X?
I'm trying to enter some UTF-8 characters into a LaTeX file in TextMate (which says its default encoding is UTF-8), but LaTeX doesn't seem to understand them.
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Eclipse “Invalid Project Description” when creating new project from existing source
I am trying to create a new project from existing source code. I keep getting the following error: "Invalid Project Description", project path "overlaps the location of another project" with the same name. The reason is that I created that project from the source code before, but then I deleted that...
How can I add numbers in a Bash script?
I have this Bash script and I had a problem in line 16.
How can I take the previous result of line 15 and add
it to the variable in line 16?
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