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Why is a combiner needed for reduce method that converts type in java 8

... got - argument mismatch; int cannot be converted to java.lang.String. Actually, I think passing 0 as the identity value is also wrong here, since a String is expected (T). Also note that this version of reduce processes a stream of Ts and returns a T, so you can't use it to reduce a stream of Stri...
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What's to stop malicious code from spoofing the “Origin” header to exploit CORS?

...header Origin: http://foo.com , and bar must respond with Access-Control-Allow-Origin: http://foo.com . 3 Answers ...
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LINQ - Left Join, Group By, and Count

... .Count() will generate COUNT(*) which will count all the rows in that group, by the way. – Mehrdad Afshari Mar 29 '09 at 22:47 ...
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How to use a WSDL

... of the defined methods on the WSDL contract. Instantiate the client and call the methods you want to call - that's all there is! YourServiceClient client = new YourServiceClient(); client.SayHello("World!"); If you need to specify the remote URL (not using the one created by default), you can e...
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ExecuteReader requires an open and available Connection. The connection's current state is Connectin

...n the Connection-Pool's territory There's a good reason why ADO.NET internally manages the underlying Connections to the DBMS in the ADO-NET Connection-Pool: In practice, most applications use only one or a few different configurations for connections. This means that during application exe...
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Does MySQL ignore null values on unique constraints?

... Yes, MySQL allows multiple NULLs in a column with a unique constraint. CREATE TABLE table1 (x INT NULL UNIQUE); INSERT table1 VALUES (1); INSERT table1 VALUES (1); -- Duplicate entry '1' for key 'x' INSERT table1 VALUES (NULL); INSER...
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Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server

...CREATE USER 'monty'@'localhost' IDENTIFIED BY 'some_pass'; mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'@'localhost' -> WITH GRANT OPTION; mysql> CREATE USER 'monty'@'%' IDENTIFIED BY 'some_pass'; mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'@'%' -> WITH GRANT OPTION; ...
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connect local repo with remote repo

... git remote add origin <remote_repo_url> git push --all origin If you want to set all of your branches to automatically use this remote repo when you use git pull, add --set-upstream to the push: git push --all --set-upstream origin ...
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How to put Google Maps V2 on a Fragment using ViewPager

....printStackTrace(); } mMapView.getMapAsync(new OnMapReadyCallback() { @Override public void onMapReady(GoogleMap mMap) { googleMap = mMap; // For showing a move to my location button googleMap.setMyLocationEnab...
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What is a bank conflict? (Doing Cuda/OpenCL programming)

...ank 2, ..., 64-69 in bank 1 and so on). For a better visualization it basically looks like this: Bank | 1 | 2 | 3 |... Address | 0 1 2 3 | 4 5 6 7 | 8 9 10 11 |... Address | 64 65 66 67 | 68 69 70 71 | 72 73 74 75 |... ... So if each thread in a halfwarp...