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When to use wrapper class and primitive type
...have mentioned that certain constructs such as Collections require objects and that objects have more overhead than their primitive counterparts (memory & boxing).
Another consideration is:
It can be handy to initialize Objects to null or send null parameters into a method/constructor to indic...
How to reference constants in EL?
...e.YourConstants" %>
This will under the covers be imported via ImportHandler#importClass() and be available as ${YourConstants.FOO}.
Note that all java.lang.* classes are already implicitly imported and available like so ${Boolean.TRUE} and ${Integer.MAX_VALUE}. This only requires a more recen...
Android: AutoCompleteTextView show suggestions when no text entered
...ou can arrange to show it when you want. Or, subclass AutoCompleteTextView and override enoughToFilter(), returning true all of time.
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Copy constructor for a class with unique_ptr
... make the class moveable, but not copyable. If you leave out the copy-ctor and copy-assignment, the compiler will guide your way on how to use a std::vector with move-only types.
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What is TypeScript and why would I use it in place of JavaScript? [closed]
...set of JavaScript which primarily provides optional static typing, classes and interfaces. One of the big benefits is to enable IDEs to provide a richer environment for spotting common errors as you type the code.
To get an idea of what I mean, watch Microsoft's introductory video on the language.
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Alternate background colors for list items
I have a list, and each item is linked, is there a way I can alternate the background colors for each item?
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Best implementation for hashCode method for a collection
...ins there why the approach is good.
A short version
Create a int result and assign a non-zero value.
For every field f tested in the equals() method, calculate a hash code c by:
If the field f is a boolean:
calculate (f ? 0 : 1);
If the field f is a byte, char, short or int: calculate (int)f;
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PHP cURL HTTP CODE return 0
I dont understand when I echo $httpCode I always get 0, I was expecting 404 when I change $html_brand into a broken url. Is there anything that I miss or do not know of? Thanks.
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Why does the Scala compiler disallow overloaded methods with default arguments?
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I think your proposal here makes a lot of sense, and I don't see what would be so complex about specifying/implementing it. Essentially, the parameter types are part of the function's ID. What does the compiler currently do with foo(String) and foo(Int) (i.e., overloaded ...
How do I commit case-sensitive only filename changes in Git?
...etter, as in Name.jpg to name.jpg . Git does not recognize this changes and I had to delete the files and upload them again. Is there a way that Git can be case-sensitive when checking for changes in file names? I have not made any changes to the file itself.
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