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Best way to make Java's modulus behave like it should with negative numbers?
...y fall into congruence classes. You are free to choose whatever candidate from that class for your notation purposes, but the idea is that it maps to all of that class, and if using a specific other candidate from it makes a certain problem significantly simpler (choosing -1 instead of n-1 for exam...
Where is array's length property defined?
...only a single new array. Subarrays are shared.
All the members inherited from class Object; the only method of Object that is not inherited is its clone method.
Resources:
JLS - Arrays
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Scripting Language vs Programming Language [closed]
...examples for each. I have Googled a lot but I always find the best answers from Stack Overflow.
14 Answers
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.NET String.Format() to add commas in thousands place for a number
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This solution is not good from an internationalisation point of view - other cultures use characters other than , as a thousands separator, for example a space or even ..
– Justin
Jan 31 '12 at 17:04
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Are unused CSS images downloaded?
...s downloaded in Chrome.
I use this technique for measuring traffic-levels from non-JS-enabled users, as Google Analytics fails us here. I prefer using the background CSS image rather than a normal <img...> tag, because I'm working under the (untested) theory that bots are less likely to grab...
Prevent scrolling of parent element when inner element scroll position reaches top/bottom? [duplicat
...ll as the event, and populates originalEvent.detail, whose +/- is reversed from what is described above. It generally returns intervals of 3, while other browsers return scrolling in intervals of 120 (at least on my machine). To correct, we simply detect it and multiply by -40 to normalize.
@amusti...
Binary Data in JSON String. Something better than Base64
...s how to partition the string data with the form boundary, and separate it from the binary data.
The only change you really need to do is on the server side; you will have to capture your meta-data which should reference the POST'ed binary data appropriately (by using a Content-Disposition boundary...
Most efficient way to increment a Map value in Java
...n't profiled memory usage in the different scenarios. I'd be happy to hear from anybody who has good insights into how the MutableInt and Trove methods would be likely to affect memory usage.
Personally, I find the MutableInt method the most attractive, since it doesn't require loading any third-pa...
Sending HTTP POST Request In Java
...te what we are going to send:
Sending a simple form
A normal POST coming from a http form has a well defined format. We need to convert our input to this format:
Map<String,String> arguments = new HashMap<>();
arguments.put("username", "root");
arguments.put("password", "sjh76HSn!"); ...
Why can't I forward-declare a class in a namespace using double colons?
... still wouldn't work, because you can't declare a class within a namespace from outside that namespace. You have to be in the namespace.
So, you can in fact forward declare a class within a namespace. Just do this:
namespace Namespace
{
class Class;
};
...