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private final static attribute vs private final attribute

... giving values to its final variables... – jamesdeath123 Jan 30 '15 at 22:08 Just in case anyone stumbles on this, ple...
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Right query to get the current number of connections in a PostgreSQL DB

...ase don't add noise to specific questions. – bugmenot123 Jun 5 '19 at 11:08 add a comment  |  ...
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ViewParam vs @ManagedProperty(value = “#{param.id}”)

...userConverter"). Invoking page by http://example.com/context/user.xhtml?id=123 will pass the id parameter through the converter and set the User object as a bean property. @ManagedProperty: Sets the value immediately after bean's construction. Set value is available during @PostConstruct which al...
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In HTML I can make a checkmark with ✓ . Is there a corresponding X-mark?

... edited Nov 27 '12 at 21:04 TK123 19.5k4444 gold badges133133 silver badges183183 bronze badges answered Apr 3 '09 at 0:27 ...
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What are the various “Build action” settings in Visual Studio project properties and what do they do

... GishuGishu 123k4545 gold badges214214 silver badges294294 bronze badges ...
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How to collapse all methods in Xcode?

... This is a LifeSaver! – bhakti123 Nov 2 '18 at 7:14 add a comment  |  ...
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MQTT与TCP的区别 - 创客硬件开发 - 清泛IT社区,为创新赋能!

一、MQTT与TCP的区别诞生时间TCP协议诞生于1974年冷战期间。MQTT诞生于1999年互联网初期,TCP协议比MQTT协议诞生早了25年。Ashton提出IoT概念也是在1999年,因此MQTT协议生逢其时。当时MIT Auto-ID Labs的Kevin Ashton为了把宝洁的供应链上的RF...
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如何获取IE (控件)的所有链接(包括Frameset, iframe) - 其他 - 清泛IT社...

来源:新浪博客 IE 顶层 body 节点通过IHTMLElement->get_all 方法无法获取iframe 里面的节点列表: CComPtr<IHTMLElement> body; ... CComPtr<IDispatch> spDispCollection; body->get_all(&spDispCollection);复制代码所以要获取iframe/frame(frameset) ...
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“git diff” does nothing

...plicit command line option to instruct us to do so. See: commit 286bc123cd (gitster, Junio C Hamano), which explains that git diff --no-index can act like a regular (non-git) diff. commit b214eddfb2 (Dale R. Worley), which clarifies the error message: Clarify documentation for "diff --no-...
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Is it possible to hide extension resources in the Chrome web inspector network tab?

...hy -f works here? What is it actually doing? – coryvb123 Jul 18 '18 at 17:23  |  show 8 more comments ...