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What is the fastest way to compare two sets in Java?
...on, there is an approach that can improve the "almost the same" case.
The idea is that you need to pre-calculate and cache a hash for the entire set so that you could get the set's current hashcode value in O(1). Then you can compare the hashcode for the two sets as an acceleration.
How could y...
How to “hibernate” a process in Linux by storing its memory to disk and restoring it later?
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The short answer is "yes." You might start by looking at this for some ideas: ELF executable reconstruction from a core image (http://vx.netlux.org/lib/vsc03.html)
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Overloading and overriding
...e virtual method or the base class. Just to give a hint regarding the main idea.
Let's say there is a Vehicle washing machine and it has a function called as "Wash" and accepts Car as a type.
Gets the Car input and washes the Car.
public void Wash(Car anyCar){
//wash the car
}
Let's ove...
Parse a URI String into Name-Value Collection
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It may be worth noting that this is only a good idea if you are already using Spring. If you are not using Spring, you will want to avoid. samatki
Modify request parameter with servlet filter
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Is it really a good idea to set a parameter in the thread's scope? Will multiple requests ever see the same thread? (I assume not)
– Zachary Craig
Mar 21 '18 at 16:10
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CSS horizontal centering of a fixed div?
...get to be seen as the best answer NOW. Quentin: I think it would be a good idea to edit in a comment to that effect in the answer itself - I'd then reverse my down vote.
– Nick Rice
May 30 '16 at 13:29
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How to highlight text using javascript
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Using a simple "replace" is a bad idea. I've described why here: stackoverflow.com/a/32758672/3894981
– dude
Sep 24 '15 at 10:43
2
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Java Reflection: How to get the name of a variable?
...er optimizations).
EDIT (related to comments):
If you step back from the idea of having to use it as function parameters, here's an alternative (which I wouldn't use - see below):
public void printFieldNames(Object obj, Foo... foos) {
List<Foo> fooList = Arrays.asList(foos);
for(Fie...
How to check if a string is a valid date
...answer uses the ArgumentError exception, but that doesn't seem like a good idea, for reasons noted in a comment there.
– cesoid
Nov 6 '14 at 20:43
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Can you provide some examples of why it is hard to parse XML and HTML with a regex? [closed]
...therefore: not only is parsing XML with regexps hard, but it is also a bad idea. Just use one of the millions of existing XML parsers, and take advantage of all the advanced features of XML.
HTML is just too hard to even try parsing on your own. First the legal syntax has many little subtleties th...