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How to use Class in Java?

There's a good discussion of Generics and what they really do behind the scenes over at this question , so we all know that Vector<int[]> is a vector of integer arrays, and HashTable<String, Person> is a table of whose keys are strings and values Person s. However, what stumps me ...
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Multiple inheritance/prototypes in JavaScript

I've come to a point where I need to have some sort of rudimentary multiple inheritance happening in JavaScript. (I'm not here to discuss whether this is a good idea or not, so please kindly keep those comments to yourself.) ...
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Static/Dynamic vs Strong/Weak

I see these terms bandied around all over the place in programming and I have a vague notion of what they mean. A search shows me that such things have been asked all over stack overflow in fact. As far as I'm aware Static/Dynamic typing in languages is subtly different to Strong/Weak typing but wha...
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Counting inversions in an array

I'm designing an algorithm to do the following: Given array A[1... n] , for every i < j , find all inversion pairs such that A[i] > A[j] . I'm using merge sort and copying array A to array B and then comparing the two arrays, but I'm having a difficult time seeing how I can use this to find...
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What is a columnar database?

I have been working with warehousing for a while now. 7 Answers 7 ...
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Remove stubborn underline from link

I am attempting to have a link show up in white, without an underline. The text color shows up correctly as white, but the blue underline is stubbornly persisting. I tried text-decoration: none; and text-decoration: none !important; in the CSS to remove the link underline. Neither worked. ...
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In what order are Panels the most efficient in terms of render time and performance?

There are many times when more than one panel would suitable for the layout I want, however I know there is a difference in render times for different panel types. ...
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What is The Rule of Three?

... 8 Answers 8 Active ...
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Easy interview question got harder: given numbers 1..100, find the missing number(s) given exactly k

I had an interesting job interview experience a while back. The question started really easy: 47 Answers ...
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How come an array's address is equal to its value in C?

In the following bit of code, pointer values and pointer addresses differ as expected. 6 Answers ...