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How to set -source 1.7 in Android Studio and Gradle

... This is essentially the same as the accepted answer. – Kerem Aug 12 '15 at 12:20 1 ...
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Using the rJava package on Win7 64 bit with R

I'm trying to install rJava on a computer with Win 7 64 bit. When I run 12 Answers 1...
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NSAttributedString add text alignment

...paragraphRef}; NSAttributedString *attributedString = [[NSAttributedString alloc] initWithString:@"Hello World" attributes:attributes]; share | improve this answer | follow ...
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How to make a phone call in android and come back to my activity when the call is done?

...ener actions to wait for a the call to start (wait until changed from PHONE_STATE_OFFHOOK to PHONE_STATE_IDLE again) and then write some code to bring your app back up on the IDLE state. you may need to run the listener in a service to ensure it stays up and your app is restarted. some example c...
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What's wrong with nullable columns in composite primary keys?

... Primary keys are for uniquely identifying rows. This is done by comparing all parts of a key to the input. Per definition, NULL cannot be part of a successful comparison. Even a comparison to itself (NULL = NULL) will fail. This means a key containing NULL would not work. Additonally, NULL is al...
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How do I use reflection to invoke a private method?

There are a group of private methods in my class, and I need to call one dynamically based on an input value. Both the invoking code and the target methods are in the same instance. The code looks like this: ...
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Impossible to Install PG gem on my mac with Mavericks

I'm trying to install the pg gem in order to work again with my rails projects. But I get this error: 26 Answers ...
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micro:bit 实验01 - 手机连上 micro:bit,点亮第一行字 · App Inventor 2 中文网

... 负责扫描、连接、断开 参考文档 Microbit_Led 负责往 LED 点阵写文字/图案 com.bbc.microbit.profile-20200518.aix 导入方式:设计视图左侧组件面板拉到底 → Extension → Import extension → 选 .aix 文件。 ...
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What does numpy.random.seed(0) do?

... I'm not very familiar with NumPy's random state generator stuff, so I'd really appreciate a layman's terms explanation of this. ...
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Iterating over all the keys of a map

Is there a way to get a list of all the keys in a Go language map? The number of elements is given by len() , but if I have a map like: ...