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Is there a practical use for weak references? [duplicate]

... answered Jan 9 '12 at 15:13 Peter LawreyPeter Lawrey 486k6969 gold badges670670 silver badges10481048 bronze badges ...
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Calculate the number of business days between two dates?

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How can I make a weak protocol reference in 'pure' Swift (without @objc)

...| edited Dec 11 '19 at 9:13 Michal Šrůtek 33333 silver badges1111 bronze badges answered Jun 8 '14 at ...
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What is the use of static variable in C#? When to use it? Why can't I declare the static variable in

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Google Play Services Library update and missing symbol @integer/google_play_services_version

...he latest version of Google Play Services ( v4.0, released on Halloween 2013 ), you are now supposed to add a new tag into the AndroidManifest.xml file. ...
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How can I read SMS messages from the device programmatically in Android?

...d Feb 16 '15 at 11:49 18446744073709551615 14k22 gold badges7676 silver badges110110 bronze badges answered Feb 29 '12 at 6:27 ...
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Map enum in JPA with fixed values?

...alizable { public enum Right { READ(100), WRITE(200), EDITOR (300); private int value; Right(int value) { this.value = value; } public int getValue() { return value; } public static Right parse(int id) { Right right = null; // Default ...
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Most underused data visualization [closed]

...e(colour = "white") + scale_fill_gradientn(colours = c("#D61818","#FFAE63","#FFFFBD","#B5E384")) + facet_wrap(~ year, ncol = 1) Which ends up looking somewhat like this: RGL: Interactive 3D Graphics Another package that is well worth the effort to learn is RGL, which easily provides the ...
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Download and open PDF file using Ajax

... 37 You don't necessarily need Ajax for this. Just an <a> link is enough if you set the conte...
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Retrieve version from maven pom.xml in code

... Sergey Brunov 11.4k77 gold badges3535 silver badges6969 bronze badges answered Sep 13 '10 at 1:50 Alex MillerAlex Miller ...