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Difference between HashMap, LinkedHashMap and TreeMap
What is the difference between HashMap , LinkedHashMap and TreeMap in Java?
I don't see any difference in the output as all the three has keySet and values . What are Hashtable s?
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How can I define colors as variables in CSS?
...te long. I know that the client could ask for changes to the color scheme, and was wondering: is it possible to assign colors to variables, so that I can just change a variable to have the new color applied to all elements that use it?
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Data structure for loaded dice?
...e. for a fixed set of probabilities) so that I can efficiently simulate a random roll of the die.
4 Answers
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When would you call java's thread.run() instead of thread.start()?
...() in a particular unit test that is concerned strictly with functionality and not with concurrency.
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Don't reload application when orientation changes
...mply need nothing to change when the screen is rotated. My app displays a random image when it first loads and rotating the device should not select another random image.
How can I (simply) make this behavior stop?
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PHP json_decode() returns NULL with valid JSON?
... I've been using the special characters since I started the application and there were no problems before. Locally, the JSON decoding works perfectly. On my server, it doesn't. And I can't call json_last_error() because it's PHP 5.2.9. That function appears on PHP 5.3.0.
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Unique (non-repeating) random numbers in O(1)?
I'd like to generate unique random numbers between 0 and 1000 that never repeat (i.e. 6 doesn't show up twice), but that doesn't resort to something like an O(N) search of previous values to do it. Is this possible?
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Why does i = i + i give me 0?
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Could you expand on your answer a bit?
– DeaIss
Jun 11 '14 at 22:16
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How can I see the size of a GitHub repository before cloning it?
...ge against the bare repository doesn't account for the shared object store and thus returns an "incomplete" value through the API call.
This information has been given by GitHub support.
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Algorithm to generate all possible permutations of a list?
... left to right, all the permutations of the remaining items are generated (and each one is added with the current elements). This can be done recursively (or iteratively if you like pain) until the last item is reached at which point there is only one possible order.
So with the list [1,2,3,4] all ...