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How do you specify the Java compiler version in a pom.xml file?
....org/plugins/maven-compiler-plugin/examples/set-compiler-source-and-target.html
Oh, and: don't use Java 1.3.x, current versions are Java 1.7.x or 1.8.x
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How do I replace NA values with zeros in an R dataframe?
...n variants can be found here: https://rdrr.io/cran/dplyr/man/summarise_all.html
Additionally, I found helpful demonstrations and collections of examples here: https://blog.exploratory.io/dplyr-0-5-is-awesome-heres-why-be095fd4eb8a
Attributions and Appreciations
With special thanks to:
Tyler R...
App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网
...，并指定 UrsAI2ByteArray 组件。例如：
XmitData 是 bytearray.html 扩展的一个实例。这是块概述中的最后一项：
发送到多播组
发送到多播组与“正常”发送没有什么不同。作为 RemoteHost，必须指定组的 IP 地址。
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Non-Relational Database Design [closed]
... and add a little bit of JavaScript polishing before they are displayed as HTML. (HUGE!!)
For normal webapps, document/JSON-based DBs are a massive win, and the drawbacks of less flexible queries and some extra code for data validation seems a small price to pay.
Have you hit your head against an...
EJB's - when to use Remote and/or local interfaces?
...f RMI.
Source: http://www.onjava.com/pub/a/onjava/2004/11/03/localremote.html?page=last&x-showcontent=text
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Is there YAML syntax for sharing part of a list or map?
...e anything on it in the current official YAML spec: yaml.org/spec/1.2/spec.html. That page doesn't contain the word "merge", nor the text "<<", nor the phrase "key type". The << syntax does work in the Python yaml package though. Do you know where I can find out more about these sorts of...
How to decide when to use Node.js?
...The company where I work got one client who wanted to have a simple static HTML website. This website is for selling one item using PayPal and the client also wanted to have a counter which shows the amount of sold items. Client expected to have huge amount of visitors to this website. I decided to ...
How to create a memory leak in Java?
...llected properly and not a leak. (but IANAJP) mindprod.com/jgloss/interned.html#GC
– Matt B.
Jul 22 '11 at 1:32
43
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Best practice for nested fragments in Android 4.0, 4.1 (
...ments http://developer.android.com/training/basics/fragments/communicating.html
2 - move your layout xml FrameLayout from your existing Fragment to the Activity layout and hide it by giving a height of 0:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns...
Should I use SVN or Git? [closed]
...his link: https://git.wiki.kernel.org/articles/g/i/t/GitSvnComparison_cb82.html
(Some extracts below):
It's incredibly fast.
No other SCM that I have used has been able to keep up with it, and I've used a lot, including Subversion, Perforce, darcs, BitKeeper, ClearCase and CVS.
It's fully distrib...