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How to detect a loop in a linked list?
Say you have a linked list structure in Java. It's made up of Nodes:
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What is the difference between the OAuth Authorization Code and Implicit workflows? When to use each
...resource (an API). In the Authorization Code flow there are 2 steps to get it:
User must authenticate and returns a code to the API consumer (called the "Client").
The "client" of the API (usually your web server) exchanges the code obtained in #1 for an access_token, authenticating itself with a ...
Difference between DTO, VO, POJO, JavaBeans?
...be manipulated visually in a builder tool. Practically, they are classes written in the Java programming language conforming to a particular convention. They are used to encapsulate many objects into a single object (the bean), so that they can be passed around as a single bean object instead of as ...
PHP PDO: charset, set names?
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You'll have it in your connection string like:
"mysql:host=$host;dbname=$db;charset=utf8"
HOWEVER, prior to PHP 5.3.6, the charset option was ignored. If you're running an older version of PHP, you must do it like this:
$dbh = new PD...
How can a Metro app in Windows 8 communicate with a backend desktop app on the same machine?
In a situation where you have the UI frontend built using the new Metro style of apps for windows 8, and would like it to communicate with a .NET application running on the desktop on the same local machine (e.g. a windows service app).
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Mongoose subdocuments vs nested schema
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According to the docs, it's exactly the same.
However, using a Schema would add an _id field as well (as long as you don't have that disabled), and presumably uses some more resources for tracking subdocs.
Alternate declaration syntax
New in v3 I...
Get size of folder or file
...ectory.listFiles() may return null and cause a NullPointerException. Also, it doesn't consider symlinks and possibly has other failure modes. Use this method.
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Gson: How to exclude specific fields from Serialization without annotations
I'm trying to learn Gson and I'm struggling with field exclusion. Here are my classes
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Display an array in a readable/hierarchical format
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Ah, in my case I was working with a multidimensional array. I haven't left a comment before so when I saw no one else had pointed this out I thought it might be a perfect opportunity!
– Alesana
Dec 6 '16 at 20:13
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How to force cp to overwrite without confirmation
I'm trying to use the cp command and force an overwrite.
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