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Understanding MongoDB BSON Document size limit
From MongoDB The Definitive Guide:
7 Answers
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Is there any free OCR library for Android? [closed]
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OCR can be pretty CPU intensive, you might want to reconsider doing it on a smart phone.
That aside, to my knowledge the popular OCR libraries are Aspire and Tesseract. Neither are straight up Java, so you're not going to get a drop-in Android OCR library.
However, Tesseract is open source...
How do SQL EXISTS statements work?
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Think of it this way:
For 'each' row from Suppliers, check if there 'exists' a row in the Order table that meets the condition Suppliers.supplier_id (this comes from Outer query current 'row') = Orders.supplier_id. When you find th...
Common programming mistakes for Clojure developers to avoid [closed]
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Literal Octals
At one point I was reading in a matrix which used leading zeros to maintain proper rows and columns. Mathematically this is correct, since leading zero obviously don't alter the underlying value. Attempts to de...
HTTP could not register URL http://+:8000/HelloWCF/. Your process does not have access rights to thi
...on text, http://go.microsoft.com/fwlink/?LinkId=70353, is broken. However, it used to lead to http://msdn.microsoft.com/en-us/library/ms733768.aspx which explains how to set the permissions.
It basically informs you to use the following command:
netsh http add urlacl url=http://+:80/MyUri user=DOM...
What and where are the stack and heap?
...re created on the stack , and reference types are created on the heap , without explaining what these two things are. I haven't read a clear explanation of this. I understand what a stack is. But,
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Why is whitespace sometimes needed around metacharacters?
A few months ago I tattooed a fork bomb on my arm, and I skipped the whitespaces, because I think it looks nicer without them. But to my dismay, sometimes (not always) when I run it in a shell it doesn't start a fork bomb, but it just gives a syntax error.
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Polymorphism vs Overriding vs Overloading
...class is abstract because the goPee() method is not definable for Humans. It is only definable for the subclasses Male and Female. Also, Human is an abstract concept — You cannot create a human that is neither Male nor Female. It’s got to be one or the other.
So we defer the implementation b...
Java Naming Convention with Acronyms [closed]
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Since it looks like the answer is that there is no single standard for this in Java, I'd like to note that the .NET Framework Design Guidelines do specify this.
Now before slamming me for being off topic, please remember that the...
Why don't C++ compilers define operator== and operator!=?
...g fan of letting the compiler do as much work for you as possible. When writing a simple class the compiler can give you the following for 'free':
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