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What is the difference between .*? and .* regular expressions?
...fier changes this behavior into non-greedy, also called reluctant (in e.g. Java) (and sometimes "lazy"). In contrast, this repetition will first try to match as few reps as possible, and when this doesn't work and they have to backtrack, they start matching one more rept a time. As a result, when a ...
Do you put unit tests in same project or another project?
... a small microcap (grew from 14 to 130 people). We had a half-dozen or so Java apps and we found it EXTREMELY valueable to deploy tests into the field to execute them on a specific machine that was exhibiting unusual behavior. Random problems occur in the field and being able to throw a few thousa...
What is the difference between UTF-8 and Unicode?
...odes most common characters as two bytes. Some platforms (notably .NET and Java) use UTF-16 as their "native" character encoding. This leads to hairy problems if you need to worry about characters which can't be encoded in a single UTF-16 value (they're encoded as "surrogate pairs") - but most devel...
搭建高可用mongodb集群（二）—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...
...lthPoll] replSet member 192.168.1.137:27017 is now in state PRIMARY
8、java程序连接副本集测试。三个节点有一个节点挂掉也不会影响应用程序客户端对整个副本集的读写！
public class TestMongoDBReplSet {
public static void main(String[] args) {
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Difference between / and /* in servlet mapping url pattern
...h for the context root (http://host:port/context/).
See Chapter 12 of the Java Servlet Specification, available in version 3.1 at http://download.oracle.com/otndocs/jcp/servlet-3_1-fr-eval-spec/index.html.
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Why must we define both == and != in C#?
...ww.ecma-international.org/publications/files/ECMA-ST/Ecma-334.pdf)
3. And Java, but that's really not the point here
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Why does Date.parse give incorrect results?
...slightly incorrect) ISO-8601 (also see What are valid Date Time Strings in JavaScript?). But other than that, there was no requirement for what Date.parse / new Date(string) should accept other than that they had to accept whatever Date#toString output (without saying what that was).
As of ECMAScri...
std::string formatting like sprintf
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For some reason, other languages use printf-like syntax: Java, Python (the new syntax is still closer to printf than to streams). Only C++ inflicts this verbose abomination on innocent human beings.
– quant_dev
Apr 5 '15 at 0:29
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What do all of Scala's symbolic operators mean?
...s three automatic imports:
// Not necessarily in this order
import _root_.java.lang._ // _root_ denotes an absolute path
import _root_.scala._
import _root_.scala.Predef._
The first two only make classes and singleton objects available. The third one contains all implicit conversions and imp...
Checking images for similarity with OpenCV
...to the otherwise same view) you can also work with absdiff codota.com/code/java/methods/org.opencv.core.Core/absdiff Thresholding the result produces a mask that allows you to highlight the regions that changed from scene to scene.
– Max F.
Mar 20 at 17:01
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