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Why is Java's Iterator not an Iterable?

... public Iterator<T> iterator() { if (used) { throw new IllegalStateException("SingleUseIterable already invoked"); } used = true; return iterator; } } return new SingleUseIterable(); } In Java 8 adapting an Iterator to an Iterable g...
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What is the difference between precision and scale?

...of the decimal point. The scale can range from -84 to 127. In your case, ID with precision 6 means it won't accept a number with 7 or more significant digits. Reference: http://download.oracle.com/docs/cd/B28359_01/server.111/b28318/datatype.htm#CNCPT1832 That page also has some examples that w...
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Can't use Swift classes inside Objective-C

...fully, but my Xcode didn't see my Swift-classes. So, I decided to create a new Xcode Objc-based project and finally, I found the right answer! Hope this post will help someone :-) Step by step Swift integration for Xcode Objc-based project: Create new *.swift file (in Xcode) or add it by using Fi...
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How to sum array of numbers in Ruby?

... edited Feb 2 '16 at 19:34 David Wolever 123k7676 gold badges297297 silver badges462462 bronze badges answered Oct 8 '09 at 16:28 ...
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Django: Why do some model fields clash with each other?

...l = function(e) { var $elem = $('.new-login-left'), docViewTop = $window.scrollTop(), docViewBottom = docViewTop + $window.height(), ...
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How to intercept touches events on a MKMapView or UIWebView objects?

...owever, didTapOnMap: was also called when I tapped on the annotation and a new one would be created. The solution is to implement the UIGestureRecognizerDelegate: - (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch { if ([touch.view isKindOfCla...
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How to get last inserted id?

...eId) VALUES(@UserId, @GameId); SELECT SCOPE_IDENTITY() And then Int32 newId = (Int32) myCommand.ExecuteScalar(); share | improve this answer | follow | ...
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How can I install an older version of a package via NuGet?

...ecause 'twitterizer 2.4.0.26532' depends on it. – Nebide Yildiz Apr 19 '12 at 5:41 9 ...
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vertical alignment of text element in SVG

...the following values auto | baseline | before-edge | text-before-edge | middle | central | after-edge | text-after-edge | ideographic | alphabetic | hanging | mathematical | inherit Description from w3c This property specifies how an object is aligned with respect to its parent. This pro...
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Java using enum with switch statement

...you receive (this is the pre-Java 5 approach) Switch on either a specified id value (as described by heneryville) or the ordinal value of the enum values; i.e. guideView.GUIDE_VIEW_SEVEN_DAY.ordinal() Determine the enum value represented by the int value and then switch on the enum value. enum Guid...