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What's the best online payment processing solution? [closed]

Should be available to non-U.S. companies, easy to setup, reliable, cheap, customizable, etc. What are your experiences? 13...
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List of standard lengths for database fields

I'm designing a database table and once again asking myself the same stupid question: How long should the firstname field be? ...
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What is the difference between LR, SLR, and LALR parsers?

What is the actual difference between LR, SLR, and LALR parsers? I know that SLR and LALR are types of LR parsers, but what is the actual difference as far as their parsing tables are concerned? ...
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Defining static const integer members in class definition

My understanding is that C++ allows static const members to be defined inside a class so long as it's an integer type. 7 An...
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When and why should I use fragments in Android applications? [duplicate]

I often need the different parts of my applications to have their own special behavior and UI, and I don't know how fragments can help. In most cases, I think it is quicker to create 2 different activities (e.g., 1 for tablets and 1 for handsets), and to share the common behaviors and events in a th...
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How can I negate the return-value of a process?

I'm looking for a simple, but cross-platform negate -process that negates the value a process returns. It should map 0 to some value != 0 and any value != 0 to 0, i.e. the following command should return "yes, nonexistingpath doesn't exist": ...
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Create a File object in memory from a string in Java

I have a function that accepts File as an argument. I don't want to create/write a new File (I don't have write access to filesystem) in order to pass my string data to the function. I should add that the String data don't exist in a file (so I cannot read my data from a file). ...
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What are the rules for evaluation order in Java?

I am reading some Java text and got the following code: 5 Answers 5 ...
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How to compare type of an object in Python?

Basically I want to do this: 14 Answers 14 ...
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Why would you use Expression rather than Func?

I understand lambdas and the Func and Action delegates. But expressions stump me. 10 Answers ...