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How to convert int[] into List in Java?
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There is no shortcut for converting from int[] to List<Integer> as Arrays.asList does not deal with boxing and will just create a List<int[]> which is not what you want. You have to make a utility method.
int[] ints = {1, 2, 3};
List<Integer>...
Calculate the execution time of a method
I have an I/O time-taking method which copies data from a location to another. What's the best and most real way of calculating the execution time? Thread ? Timer ? Stopwatch ? Any other solution? I want the most exact one, and briefest as much as possible.
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Easiest way to convert a List to a Set in Java
...omeComparator);
lSet.addAll(myList);
This depends on either compareTo() (from the comparable interface) or compare() (from the comparator) to ensure uniqueness. So, if you just care about uniqueness, use the HashSet. If you're after sorting, then consider the TreeSet. (Remember: Optimize later!) I...
Why are primes important in cryptography?
... info on the latest work, I believe that was back in 2012, this article is from 2014 (m.phys.org/news/2014-11-largest-factored-quantum-device.html) Have we seen any public data from 2016? Not to exclude what might be classified. Although it can't run Shors Algorithm, D-Wave is now over 1000 qbits
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How to make a node.js application run permanently?
On a Debian server, I installed Node.js. I understand how to launch an app from putty with this command line:
19 Answers
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Coding Conventions - Naming Enums
...tants are in upper case)
As always, your coding standards probably differ from mine; so YMMV.
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Xcode iOS 8 Keyboard types not supported
... I am also getting this on an iPhone 6 with the latest Xcode from the App Store.
– Daniel Wood
Sep 25 '14 at 15:28
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Standardize data columns in R
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@weber85, it is a "pipe" operator (from functional programming). Instead of writing f(g(x)) it would look nicer if one writes x %>% g %>% f. In other words, dat %>% mutate_each_(funs(scale),vars=c("y","z")) is just mutate_each_(dat,funs(scale),vars=c(...
How to print a string in fixed width?
...lly posted as an edit to @0x90's answer, but it got rejected for deviating from the post's original intent and recommended to post as a comment or answer, so I'm including the short write-up here.
In addition to the answer from @0x90, the syntax can be made more flexible, by using a variable for th...
Max length for client ip address [duplicate]
...s of the code, they had an option to specifically get IPv4, IPV6, or a mix from the query.
– Stan Graves
Jul 2 '09 at 22:07
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