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What is the use of interface constants?

.... Use of Enum Constants is actually Horrible Practice. It requires writing extra code to map parameter to value. The fact that the founders of Java did not provide for parameter-value mapping without your writing that mapping code demonstrates Enum Constants are just as unintended use of Java langua...
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SQL: IF clause within WHERE clause

... Table WHERE OrderNumber LIKE '%' + @OrderNumber END 3) Using a long string, compose your SQL statement conditionally, and then use EXEC The 3rd approach is hideous, but it's almost the only think that works if you have a number of variable conditions like that. ...
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How can I add new keys to a dictionary?

... you want to set multiple values at the same time, as long as the keys are strings (since kwargs are converted to strings). dict.update can also take another dictionary, but I personally prefer not to explicitly create a new dictionary in order to update another one. – bgusach ...
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RandomForestClassifier vs ExtraTreesClassifier in scikit learn

Can anyone explain the difference between the RandomForestClassifier and ExtraTreesClassifier in scikit learn. I've spent a good bit of time reading the paper: ...
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Quick Sort Vs Merge Sort [duplicate]

...deed. Both explanation and simple implementations. – extraneon Apr 8 '10 at 8:05 1 @Stephan Egger...
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How do CDI and EJB compare? interact?

... let me explain "Dependent" with example: class Specification { private String color; private String model; //- Getter and Setter } The Specification class is CDI, since it is not annotated with Ejb scopes and also this has to initialized by your code not EE framework. One point to be note...
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What's the need of array with zero elements?

...u would use it like this: struct bts_action *var = kmalloc(sizeof(*var) + extra, GFP_KERNEL); This used to be not standard and was considered a hack (as Aniket said), but it was standardized in C99. The standard format for it now is: struct bts_action { u16 type; u16 size; u8 data...
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Error-Handling in Swift-Language

...in AFNetworking: var sessionManager = AFHTTPSessionManager(baseURL: NSURL(string: "yavin4.yavin.planets")) sessionManager.HEAD("/api/destoryDeathStar", parameters: xwingSquad, success: { (NSURLSessionDataTask) -> Void in println("Success") }, failure:{ (NSURLSessionDataTask, ...
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How to convert current date into string in java?

How do I convert the current date into string in Java? 9 Answers 9 ...
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How to import an excel file in to a MySQL database

... to import spreadsheet data into a MySQL database that doesn't rely on any extra software. Let's assume you want to import your Excel table into the sales table of a MySQL database named mydatabase. Select the relevant cells: Paste into Mr. Data Converter and select the output as MySQL: Change...