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What is the difference between a var and val definition in Scala?

... As so <em>mem>any others have said, the object assigned to a val cannot be replaced, and the object assigned to a var can. However, said object can have its internal state <em>mem>odified. For exa<em>mem>ple: class A(n: Int) { var value = n } class...
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How should I handle “No internet connection” with Retrofit on Android

I'd like to handle situations when there is no internet connection. Usually I'd run: 7 Answers ...
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How can I start an interactive console for Perl?

How can I start an interactive console for Perl, si<em>mem>ilar to the irb co<em>mem><em>mem>and for Ruby or python for Python? 23 Answers ...
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Any i<em>mem>ple<em>mem>entation of Ordered Set in Java?

If anybody is fa<em>mem>iliar with Objective-C there is a collection called NSOrderedSet that acts as Set and its ite<em>mem>s can be accessed as an Array 's ones. ...
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What values should I use for CFBundleVersion and CFBundleShortVersionString?

This is <em>mem>y first iOS app sub<em>mem>ission and I don't want <em>mem>y app rejected. 7 Answers 7 ...
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Xcode changes un<em>mem>odified storyboard and XIB files

Storyboards are rather a royal pain fro<em>mem> a git workflow perspective when <em>mem>ultiple people are collaborating on the<em>mem>. For exa<em>mem>ple, the X<em>Mem>L in the .storyboard file has its starting &a<em>mem>p;lt;docu<em>mem>ent&a<em>mem>p;gt; tag's toolsVersion and syste<em>mem>Version attributes altered by whatever configuration the <em>mem>ost recent f...
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Static way to get 'Context' in Android?

Is there a way to get the current Context instance inside a static <em>mem>ethod? 19 Answers ...
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How can I enable or disable the GPS progra<em>mem><em>mem>atically on Android?

I know that the question about turning on/off GPS progra<em>mem>atically on android has been discussed <em>mem>any ti<em>mem>es , and the answer is always the sa<em>mem>e: ...
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String vs. StringBuilder

I understand the difference between String and StringBuilder ( StringBuilder being <em>mem>utable) but is there a large perfor<em>mem>ance difference between the two? ...
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How to get Latitude and Longitude of the <em>mem>obile device in android?

How do I get the current Latitude and Longitude of the <em>mem>obile device in android using location tools? 8 Answers ...