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Inheritance vs. Aggregation [closed]
...h to find out if we need inheritance or aggregation.
If The new class is more or less as the original class. Use inheritance. The new class is now a subclass of the original class.
If the new class must have the original class. Use aggregation. The new class has now the original class as a member....
How to display count of notifications in app launcher icon [duplicate]
...you can search for this on stackoverflow, e.g. here. But I will repeat one more time: there is no standard API for this and I want to say it is a bad practice. App's icon notification badge is an iOS pattern and it should not be used in Android apps anyway. In Andrioid there is a status bar notifica...
When is an interface with a default method initialized?
...re's been a reply from Alex Buckley (editor of the JLS) in which he raises more questions directed at the JVM and lambda implementation teams. He also notes that there's a bug in the spec here where it says "T is a class and a static method declared by T is invoked" should also apply if T is an inte...
How to calculate cumulative normal distribution?
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@javadba - location and scale are more general terms in statistics that are used to parameterize a wide range of distributions. For the normal distribution, they line up with mean and sd, but not so for other distributions.
– Michael Oh...
Easiest way to convert a List to a Set in Java
...our objects. This is done in combination with the .hashCode() method. (For more on equality look here)
An alternative that gives a sorted set is:
new TreeSet<Foo>(myList);
This works if Foo implements Comparable. If it doesn't then you may want to use a comparator:
Set<Foo> lSet = n...
How to prevent a click on a '#' link from jumping to top of page?
... Instead of return false, do an event.preventDefault(). This is more clear for the people who will read your code.
– RvdK
Jul 15 '10 at 6:06
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How to define an enum with string value?
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How to show Page Loading div until the page has finished loading?
...ent)
No image needed but it's easy to add one
Change the delay for more branding or instructions
Only dependency is jQuery.
CSS loader code from https://projects.lukehaas.me/css-loaders
$('body').append('<div style="" id="loadingDiv"><div class="loader">Loading...
How to convert a double to long without casting?
...// x = 1234
This will be faster than going via the wrapper classes - and more importantly, it's more readable. Now, if you need rounding other than "always towards zero" you'll need slightly more complicated code.
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