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Access restriction: The type 'Application' is not API (restriction on required library rt.jar)

...search. Background: Eclipse access restrictions Eclipse has a mechanism called access restrictions to prevent you from accidentally using classes which Eclipse thinks are not part of the public API. Usually, Eclipse is right about that, in both senses: We usually do not want to use something which...
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How do I set up DNS for an apex domain (no www) pointing to a Heroku app?

... (Note: root, base, apex domains are all the same thing. Using interchangeably for google-foo.) Traditionally, to point your apex domain you'd use an A record pointing to your server's IP. This solution doesn't scale and isn't viable for a cloud platform like H...
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How to commit a change with both “message” and “description” from the command line? [duplicate]

I'm new to both git and GitHub. I managed to set up everything locally on my Mac, so that now I can push commits to GitHub via git (on the command line, not the Mac app). ...
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What does @@variable mean in Ruby?

...the classes; setting the value in an instance of one changes the value for all other instances of that class and even child classes, where a variable named @shared, with one @, would not be. [Update] As Phrogz mentions in the comments, it's a common idiom in Ruby to track class-level data with an ...
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What is the result of % in Python?

...s second operand (or zero); the absolute value of the result is strictly smaller than the absolute value of the second operand [2]. Taken from http://docs.python.org/reference/expressions.html Example 1: 6%2 evaluates to 0 because there's no remainder if 6 is divided by 2 ( 3 times ). Example 2...
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The way to check a HDFS directory's size?

... Prior to 0.20.203, and officially deprecated in 2.6.0: hadoop fs -dus [directory] Since 0.20.203 (dead link) 1.0.4 and still compatible through 2.6.0: hdfs dfs -du [-s] [-h] URI [URI …] You can also run hadoop fs -help for more info and specifics...
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How to use glyphicons in bootstrap 3.0

... Hi all,I have done the same and followed up the structure but not getting the correct glyphicon...An unidentified 0101 type image is shown instead of glyphicon – Shivang Gupta Aug 13 '13 at...
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Why is it necessary to set the prototype constructor?

...}; // define the Student class function Student(name) { Person.call(this, name); } // inherit Person Student.prototype = Object.create(Person.prototype); Now what happens when we create a new Student and copy it? var student1 = new Student("trinth"); console.log(student1....
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Tips for a successful AppStore submission? [closed]

...Store. Your bundle identifier, as sascha says, should be unique and is usually your domain backwards. This needs to match the App Id you created in the Developer Portal. The Display Name (CFBundleDisplayName) is how it appears on the home screen. One important thing I found about this is that it c...
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Why do we need Abstract factory design pattern?

... All of these examples describe the Factory Method Pattern, because all of them return a single product interface. None of these is an Abstract Factory Pattern, because none of them produce a family of related product interfac...