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Understanding Spliterator, Collector and Stream in Java 8
... .collect(Collectors.summingInt(Employee::getSalary)));
// Group employees by department
Map<Department, List<Employee>> byDept
= employees.stream()
.collect(Collectors.groupingBy(Employee::getDepartment));
// Compute sum of salaries by department
...
How do I switch between the header and implementation file in Xcode 4?
...mally works okay. Although when you have moved files between
folders & groups in the file list of Xcode, it will also list the relation between the files.
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How to remove all line breaks from a string
... // logs: "this is a test"
.replace() with /\s+/g regexp is changing all groups of white-spaces characters to a single space in the whole string then we .trim() the result to remove all exceeding white-spaces before and after the text.
Are considered as white-spaces characters:
[ \f\n\r\t\v\...
How to find out how many lines of code there are in an Xcode project?
...n.
Note that it will not look inside real folders, though it will look in groups. Odds are you aren't using real folders so it'll work great. If you are using folders then you just have to do the count in each folder and add them together.
Note: As of June, 2012, it seems this does not work proper...
Timing a command's execution in PowerShell
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Try this sometime: Get-History | Group {$_.StartExecutionTime.Hour} | sort Count -desc to see your PowerShell usage pattern by hour of day. :-)
– Keith Hill
Aug 18 '10 at 21:41
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How to append contents of multiple files into one file
...{ find . -type f -name *.txt -exec cat '{}' \; ; } >> 0.txt (I added grouping so that you realize what's really happening). Another flaw is that find is going to find the file 0.txt, and cat will complain by saying that input file is output file.
– gniourf_gniourf
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Retrieve a single file from a repository
... repositories. See help.github.com/articles/can-i-archive-a-repository and groups.google.com/forum/#!topic/github/z8vLHcX0HxY
– vmrob
Aug 20 '14 at 22:19
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How do you display a Toast from a background thread on Android?
...koverflow.com/a/4128799/1429432 3- stackoverflow.com/a/10347346/1429432 4- groups.google.com/d/msg/android-developers/3i8M6-wAIwM/…
– Yousha Aleayoub
Feb 16 '16 at 17:30
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What is the difference between DSA and RSA?
...S), some of which encrypt (e.g. RSA-OAEP). But we gave every algorithms in group based crypto a different name, calling one of the encryption algorithms ElGamal encryption and calling one of the signature algorithms DSA.
– CodesInChaos
Oct 23 '13 at 12:40
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Select unique or distinct values from a list in UNIX shell script
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Yes, you do. Or more accurately, you need to group all the duplicate lines together. Sorting does this by definition though ;)
– Matthew Scharley
Mar 6 '09 at 10:37
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