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What is the standard exception to throw in Java for not supported/implemented operations?

...used by other packages. I guess if Oracle does so, then so should we. I'll file a bug report. – Maarten Bodewes Jun 7 '16 at 18:14 2 ...
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How do I implement interfaces in python?

...unting = IncompleteAccountingSystem() Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: Can't instantiate abstract class IncompleteAccountingSystem with abstract methods create_purchase_invoice, create_sale_invoice You can also have abstract properties...
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Changing three.js background to transparent or other color

...rer with an alpha value and the clear color, I had to go into the app.json file and find the "Scene" Object's "background" attribute and set it to: "background: null". The export from Three.js editor had it originally set to "background": 0 ...
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Random record from MongoDB

...y a feature request: http://jira.mongodb.org/browse/SERVER-533 but it was filed under "Won't fix." The cookbook has a very good recipe to select a random document out of a collection: http://cookbook.mongodb.org/patterns/random-attribute/ To paraphrase the recipe, you assign random numbers to yo...
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Unable to hide welcome screen in Emacs

...rtup-screen, so simply add (setq inhibit-startup-screen t) to your .emacs file will solve the problem. Given that configuration, your startup buffer is now *scratch*, if you want to further change the default buffer, M-h v initial-buffer-choice <RET> will help. Official document: http://www...
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Ruby: How to turn a hash into HTTP parameters?

... Steal from Merb: # File merb/core_ext/hash.rb, line 87 def to_params params = '' stack = [] each do |k, v| if v.is_a?(Hash) stack << [k,v] else params << "#{k}=#{v}&" end end stack.each do |pa...
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Passing variables in remote ssh command

... an environment variable through ssh: On the server, edit the sshd_config file, typically /etc/ssh/sshd_config and add an AcceptEnv directive matching the variables you want to pass. See man sshd_config. In my case, I want to pass variables to borg backup so I chose: AcceptEnv BORG_* Now, on the...
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Forward an invocation of a variadic function in C

...e uses frame pointers and the 'standard' calling conventions. This header file allows to wrap variadic functions for x86_64 and i386 (GCC). It doesn't work for floating-point arguments, but should be straight forward to extend for supporting those. #ifndef _VA_ARGS_WRAPPER_H #define _VA_ARGS_WRAPP...
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Access Asset Catalog programmatically

...ically. How would I access my images, now? Do I still access them by their file names like so: 4 Answers ...
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Will iOS launch my app into the background if it was force-quit by the user?

... PushKit is reserved for VoIP, File Providers, and Watch Complications. It is not available for the use cases this answer describes. – quellish Aug 28 '18 at 0:21 ...