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Why is a combiner needed for reduce method that converts type in java 8
...ch; 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 String to an int.
The thr...
How do you upload images to a gist?
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answered Nov 30 '18 at 15:14
ow3now3n
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C# listView, how do I add items to columns 2, 3 and 4 etc?
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Dayan
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answered Jan 23 '09 at 15:08
InisheerInisheer
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how to unit test file upload in django
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DynamoDB vs MongoDB NoSQL [closed]
...e it out what can I use for a future project, we plan to store from about 500k records per month in the first year and maybe more for the next years this is a vertical application so there's no need to use a database for this, that's the reason why I decided to choose a noSQL data storage.
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Get a substring of a char* [duplicate]
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char subbuff[5];
memcpy( subbuff, &buff[10], 4 );
subbuff[4] = '\0';
Job done :)
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Chaining multiple MapReduce jobs in Hadoop
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answered Mar 24 '10 at 22:31
Binary NerdBinary Nerd
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Get type name without full namespace
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answered Aug 3 '10 at 12:13
Tim RobinsonTim Robinson
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What does a lazy val do?
...not sure if it is later used.
scala> class X { val x = { Thread.sleep(2000); 15 } }
defined class X
scala> class Y { lazy val y = { Thread.sleep(2000); 13 } }
defined class Y
scala> new X
res5: X = X@262505b7 // we have to wait two seconds to the result
scala> new Y
res6: Y = Y@1555b...
What does threadsafe mean?
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answered Jan 9 '10 at 15:51
Gregory PakoszGregory Pakosz
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