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structure vs class in swift language

From Apple book "One of the most important differences between structures and classes is that structures are always copied when they are passed around in your code, but classes are passed by reference." ...
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Private vs Protected - Visibility Good-Practice Concern [closed]

I've been searching and I know the theoretic difference. 6 Answers 6 ...
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PersistentObjectException: detached entity passed to persist thrown by JPA and Hibernate

... to the corresponding getters. A big word of caution is not to mix "Field" and "Property" access types within the entity class otherwise the behavior is undefined by the JSR-317 specifications. share | ...
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Does Python have a package/module management system?

...ood news! Python 3.4 ships with Pip. Pip has long been Python's de-facto standard package manager. You can install a package like this: pip install httpie Wahey! This is the best feature of any Python release. It makes the community's wealth of libraries accessible to everyone. Newbies are no lon...
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Autolayout - intrinsic size of UIButton does not include title insets

...on width is derived from the title width plus the icon width plus the left and right content edge insets. If a button has both an image and text, they’re centered as a group, with no padding between. If you add a left content inset, it’s calculated relative to the text, not the text + icon. If y...
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How do I write a correct micro-benchmark in Java?

How do you write (and run) a correct micro-benchmark in Java? 11 Answers 11 ...
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Why must wait() always be in synchronized block

... to explicitly acquire the monitor by making particular block synchronized and then release the monitor by calling wait() ? ...
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Cookies vs. sessions

...r the sake of creating a login system for my website, I read about cookies and sessions and their differences (cookies are stored in the user's browser and sessions on the server). At that time, I preferred cookies (and who does not like cookies?!) and just said: "who cares? I don't have any good de...
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Difference between local and global indexes in DynamoDB

I'm curious about these two secondary indexes and differences between them. It is hard to imagine how this looks like. And I think, this will help more people than just me. ...
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What is the difference between Factory and Strategy patterns?

Can any one explain the difference between factory and strategy patterns? 12 Answers ...