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Does Java SE 8 have Pairs or Tuples?
I am playing around with lazy functional operations in Java SE 8, and I want to map an index i to a pair / tuple (i, value[i]) , then filter based on the second value[i] element, and finally output just the indices.
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A generic list of anonymous class
...r I got Error 1 'System.Array' does not contain a definition for 'ToList' and no extension method 'ToList' accepting a first argument of type 'System.Array' could be found (are you missing a using directive or an assembly reference?)
– DHornpout
Mar 4 '09 at 2...
Iterating through a list in reverse order in java
...thout an index argument will give an Iterator at the beginning of the list and so hasPrevious() will return false on the first call.
– Adamski
Jan 20 '10 at 15:35
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Turning multi-line string into single comma-separated
... to the hold space and after deleting the introduced newline at the start, convert all newlines to ,'s.
N.B. Could be written:
sed 's/\S\+\s\+//;s/\s.*//;1h;1!H;$!d;x;s/\n/,/g' file
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Subqueries vs joins
...mple of how subqueries are evaluated in MySQL 6.0.
The new optimizer will convert this kind of subqueries into joins.
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Is bool a native C type?
...kernel code uses bool, but I thought that bool was a C++ type. Is bool a standard C extension (e.g., ISO C90) or a GCC extension?
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Detect the specific iPhone/iPod touch model [duplicate]
... game that utilizes the peer-to-peer bluetooth capabilities of the iPhone (and probably the iPod touch 2nd generation). However, to stop the users from trying to play a multiplayer on an iPod 1st gen and iPhone 2G I need to check for the specific device model.
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How can I use swift in Terminal?
...'s new in Xcode 6 . The article introduces some new feature about Xcode 6, and it says:
13 Answers
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How do I count unique values inside a list
...s are thrown away, and list.count() is O(n) anyway. You don't even need to convert aa to list at all. See Vidul's answer instead.
– wjandrea
Sep 23 at 15:38
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Why not use Double or Float to represent currency?
...lways been told never to represent money with double or float types, and this time I pose the question to you: why?
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