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What is the difference between public, protected, package-private and private in Java?

... friends -> "The less you know about it the better" ---> It gives selective visibility, which is still superior to package privacy. In C++, it has its uses, because not all functions can be member functions, and friends is better than public'ing. Of course there is a danger of misuse by evi...
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Can I 'git commit' a file and ignore its content changes?

...an move it to different Change Set. Head over to Local Changes (Cmd + 9) Select file(s) you want to ignore F6 to move them to another Change Set share | improve this answer | ...
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Rich vs Anemic Domain Model [closed]

...or example, if you pass Order to view, then you can use needToDeliver() of selected Order to display list of items to be confirmed by user before they click on save button to persist the Order. Responding To Comment This is how I use the domain class from controller: def save = { Order order =...
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Wrap a delegate in an IEqualityComparer

... This is nice but if the key being selected was a value type there would be unnecessary boxing. Perhaps would be better to have a TKey for defining the key. – Graham Ambrose Aug 12 '11 at 13:19 ...
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Constructor overloading in Java - best practice

...ht be JTable - the primary constructor takes a TableModel (plus column and selection models) and the other constructors call this primary constructor. For subclasses where the superclass already has overloaded constructors, I would tend to assume that it is reasonable to treat any of the parent cla...
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Can I have multiple :before pseudo-elements for the same element?

...s the case with any other CSS property. This behavior is described in the Selectors section of CSS2.1: Pseudo-elements behave just like real elements in CSS with the exceptions described below and elsewhere. This implies that selectors with pseudo-elements work just like selectors for normal ...
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MySQL foreign key constraints, cascade delete

...RITY DEFINER BEGIN DELETE FROM `products` WHERE `id` IN ( SELECT `products_id` FROM `categories_products` WHERE `categories_id` = category_ID ) ; DELETE FROM `categories` WHERE `id` = category_ID; END You also need to add the following foreign key constraints...
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How to change the session timeout in PHP?

..., it was about running 2 additional queries to get these prev/next values. SELECT id FROM gallery WHERE SortOrder > $currentsortorder LIMIT 1 – Your Common Sense Nov 29 '11 at 13:37 ...
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Can an angular directive pass arguments to functions in expressions specified in the directive's att

...ve.html' }; }) In directive template use it in following way: <select ng-change="myFunction(selectedAmount)"> And then when you use the directive, pass the function like this: <data-my-directive data-my-function="setSelectedAmount"> </data-my-directive> You pass t...
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Why should hash functions use a prime number modulus?

...er of buckets. This is convenient and saves having to search around or pre-select a prime number of the right magnitude. So you rely on the hash function not to use even multipliers, which is generally a safe assumption. But you can still get occasional bad hashing behaviours based on hash functions...