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Why does C# not provide the C++ style 'friend' keyword? [closed]
The C++ friend keyword allows a class A to designate class B as its friend. This allows Class B to access the private / protected members of class A .
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How to extract text from a PDF? [closed]
Can anyone recommend a library/API for extracting the text and images from a PDF?
We need to be able to get at text that is contained in pre-known regions of the document, so the API will need to give us positional information of each element on the page.
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What is the difference between Θ(n) and O(n)?
Sometimes I see Θ(n) with the strange Θ symbol with something in the middle of it, and sometimes just O(n). Is it just laziness of typing because nobody knows how to type this symbol, or does it mean something different?
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How to pass an array within a query string?
Is there a standard way of passing an array through a query string?
10 Answers
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What in the world are Spring beans?
I am yet to find a high-level definition of Spring beans that I can understand. I see them referenced often in Grails documentation and books, but I think that understanding what they are would be beneficial. So what are Spring beans? How can they be used? Do they have something to do with Dependenc...
Can we make unsigned byte in Java
I am trying to convert a signed byte in unsigned. The problem is the data I am receiving is unsigned and Java does not support unsigned byte, so when it reads the data it treats it as signed.
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How do I redirect to another webpage?
How can I redirect the user from one page to another using jQuery or pure JavaScript?
58 Answers
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An algorithm for inflating/deflating (offsetting, buffering) polygons
How would I "inflate" a polygon? That is, I want to do something similar to this:
12 Answers
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Correct way to delete cookies server-side
For my authentication process I create a unique token when a user logs in and put that into a cookie which is used for authentication.
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