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PHP: How to send HTTP response code?

... make responses with HTTP response codes (status-codes), like HTTP 200 OK, or some 4XX or 5XX code. 9 Answers ...
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How to get unique device hardware id in Android? [duplicate]

...ow to get the unique device ID in Android which cannot be changed when performing a phone reset or OS update? 3 Answers ...
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How to cast an Object to an int

... you're sure that this object is an Integer : int i = (Integer) object; Or, starting from Java 7, you can equivalently write: int i = (int) object; Beware, it can throw a ClassCastException if your object isn't an Integer and a NullPointerException if your object is null. This way you assume ...
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How does TransactionScope roll back transactions?

...action (Transaction Scope) and if so enlist with it. Caution if there are more the one connection to the same SQL server this will escalate to a Distribtued Transaction. What happens since you're using a using block you are ensuring dispose will be called even if an exception occurs. So if dispose...
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What should go into an .h file?

... Header files (.h) are designed to provide the information that will be needed in multiple files. Things like class declarations, function prototypes, and enumerations typically go in header files. In a word, "definitions". Code files (.cpp) are designed to provide the impl...
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How the single threaded non blocking IO model works in Node.js

...er, but I'm interested in how the single threaded non blocking IO model works. After I read the article understanding-the-node-js-event-loop , I'm really confused about it. It gave an example for the model: ...
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What are dictionary view objects?

...at their name says: views are simply like a window on the keys and values (or items) of a dictionary. Here is an excerpt from the official documentation for Python 3: >>> dishes = {'eggs': 2, 'sausage': 1, 'bacon': 1, 'spam': 500} >>> keys = dishes.keys() >>> values = d...
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Java JUnit: The method X is ambiguous for type Y

I had some tests working fine. Then, I moved it to a different package, and am now getting errors. Here is the code: 3 Answ...
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ANTLR: Is there a simple example?

...ANTLR, but after spending a few hours reviewing the examples at the antlr.org site, I still can't get a clear understanding of the grammar to Java process. ...
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What does the “assert” keyword do? [duplicate]

What does assert do? For example in the function: 8 Answers 8 ...