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What is the use of pri<em>nem>tStackTrace() method i<em>nem> Java?

... very useful tool for diag<em>nem><em>osem>i<em>nem>g a<em>nem> exceptio<em>nem>s. It tells you what happe<em>nem>ed <em>a<em>nem>dem> where i<em>nem> the code this happe<em>nem>ed. Here's a<em>nem> example of how it might be used i<em>nem> practice: try { // ... } catch (SomeExceptio<em>nem> e) { e.pri<em>nem>tStackTrace(); } ...
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Why is Class.<em>nem>ewI<em>nem>sta<em>nem>ce() “evil”?

... IDEs allow you to fi<em>nem>d class usages - it helps duri<em>nem>g refactori<em>nem>g, if you <em>a<em>nem>dem> your IDE k<em>nem>ow what code is usi<em>nem>g class that you pla<em>nem> to cha<em>nem>ge. Whe<em>nem> you do<em>nem>'t do a<em>nem> explicit usage of the co<em>nem>structor, but use Class.<em>nem>ewI<em>nem>sta<em>nem>ce() i<em>nem>stead, you risk <em>nem>ot to fi<em>nem>d that usage duri<em>nem>g refactori<em>nem>g <em>a<em>nem>dem> this pro...
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Get selected value i<em>nem> dropdow<em>nem> list usi<em>nem>g JavaScript

... var strUser = e.optio<em>nem>s[e.selectedI<em>nem>dex].value; This is correct <em>a<em>nem>dem> should give you the value. Is it the text you're after? var strUser = e.optio<em>nem>s[e.selectedI<em>nem>dex].text; So you're clear o<em>nem> the termi<em>nem>ology: &lt;select&gt; &lt;optio<em>nem> value="hello"&gt;Hello World&lt;/optio<em>nem>&gt; &lt;...
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What is the differe<em>nem>ce betwee<em>nem> shallow copy, deepcopy <em>a<em>nem>dem> <em>nem>ormal assig<em>nem>me<em>nem>t operatio<em>nem>?

...wards the existi<em>nem>g object. The docs explai<em>nem> the differe<em>nem>ce betwee<em>nem> shallow <em>a<em>nem>dem> deep copies: The differe<em>nem>ce betwee<em>nem> shallow <em>a<em>nem>dem> deep copyi<em>nem>g is o<em>nem>ly releva<em>nem>t for compou<em>nem>d objects (objects that co<em>nem>tai<em>nem> other objects, like lists or class i<em>nem>sta<em>nem>ces): A shallow copy co<em>nem>structs a <em>nem>ew compo...
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How to use Wi<em>nem>Forms progress bar?

...grou<em>nem>dWorker. If you have a loop that large i<em>nem> your Wi<em>nem>Form it will block <em>a<em>nem>dem> your app will look like it has ha<em>nem>ged. Look at Backgrou<em>nem>dWorker.ReportProgress() to see how to report progress back to the UI thread. For example: private void Calculate(i<em>nem>t i) { double pow = Math.Pow(i, i); } pri...
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高并发服务端分布式系统设计概要 - C/C++ - 清泛网 - 专注C/C++及内核技术

...式系统设计概要张峻崇 原创主页:http: ccixx.com 昵称:Jo<em>nem>e Zha<em>nem>g我们今天要设计的系统目标很明确,针对千万级以上PV的网站,设计一套用于后台的高...张峻崇 原创 主页:http://ccixx.com 昵称:Jo<em>nem>e Zha<em>nem>g 我们今天要设计的系统目...
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Fi<em>nem>d value i<em>nem> a<em>nem> array

...i<em>nem>g that you're tryi<em>nem>g to fi<em>nem>d if a certai<em>nem> value exists i<em>nem>side the array, <em>a<em>nem>dem> if that's the case, you ca<em>nem> use Array#i<em>nem>clude?(value): a = [1,2,3,4,5] a.i<em>nem>clude?(3) # =&gt; true a.i<em>nem>clude?(9) # =&gt; false If you mea<em>nem> somethi<em>nem>g else, check the Ruby Array API ...
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How to k<em>nem>ow user has clicked “X” or the “Cl<em>osem>e” butto<em>nem>?

... get it through the se<em>nem>der object. Try to cast se<em>nem>der as a Butto<em>nem> co<em>nem>trol, <em>a<em>nem>dem> verify perhaps for its <em>nem>ame "Cl<em>osem>eButto<em>nem>", for i<em>nem>sta<em>nem>ce. private void Form1_FormCl<em>osem>i<em>nem>g(object se<em>nem>der, FormCl<em>osem>i<em>nem>gEve<em>nem>tArgs e) { if (stri<em>nem>g.Equals((se<em>nem>der as Butto<em>nem>).<em>Nem>ame, @"Cl<em>osem>eButto<em>nem>")) // Do somethi<em>nem>g pro...
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Li<em>nem>q order by boolea<em>nem>

... Just wa<em>nem>ted to do this <em>a<em>nem>dem> it seems like somethi<em>nem>g with <em>nem>o implicit orderi<em>nem>g. I did the followi<em>nem>g to be more explicit: Somethi<em>nem>g.OrderBy(e=&gt;e.SomeFlag ? 0 : 1) to sort somethi<em>nem>g true to false. ...
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Maki<em>nem>g custom right-click co<em>nem>text me<em>nem>us for my web-app

I've a few websites like google-docs <em>a<em>nem>dem> map-quest that have custom drop dow<em>nem> me<em>nem>us whe<em>nem> you right-click. Somehow they override the browser's behavior of drop-dow<em>nem> me<em>nem>u, <em>a<em>nem>dem> I'm <em>nem>ow sure exactly how they do it. I fou<em>nem>d a jQuery plugi<em>nem> that does this, but I'm still curious about a few thi<em>nem>gs: ...