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Data access object (DAO) in Java
I was going through a document and I came across a term called DAO . I found out that it is a Data Access Object. Can someone please explain me what this actually is?
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Warning: “format not a string literal and no format arguments”
Since upgrading to the latest Xcode 3.2.1 and Snow Leopard, I've been getting the warning
11 Answers
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jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
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See my edited answer. clean and build the app using Maven, and check that the servlet jar is not in the WEB-INF/lib directory in the generated webapp.
– JB Nizet
Mar 24 '13 at 17:37
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Understand the “Decorator Pattern” with a real world example
...case of a pizza shop. In the pizza shop they will sell few pizza varieties and they will also provide toppings in the menu. Now imagine a situation wherein if the pizza shop has to provide prices for each combination of pizza and topping. Even if there are four basic pizzas and 8 different toppings,...
How can I make grep print the lines below and above each matching line? [duplicate]
I have to parse a very large file and I want to use the command grep (or any other tool).
3 Answers
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XPath: How to select elements based on their value?
I am new to using XPath and this may be a basic question. Kindly bear with me and help me in resolving the issue. I have an XML file like this:
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What's the difference between `=` and `
I'm using R 2.8.1 and it is possible to use both = and <- as variable assignment operators. What's the difference between them? Which one should I use?
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Xcode 'Build and Archive' menu item disabled
I have been using the new 'Build and Archive' feature of the latest Xcode 3.2.3. I like it.
10 Answers
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Maven equivalent for python [closed]
I'm a java developer/python beginner, and I'm missing my maven features, particularly dependency management and build automation (I mean you don't build, but how to create a package for deployment?)
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Difference between exit() and sys.exit() in Python
In Python, there are two similarly-named functions, exit() and sys.exit() . What's the difference and when should I use one over the other?
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