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Adding up BigDecimals using Streams
...same, except that I have added a totalMapper variable, that has a function from Invoice to BigDecimal and returns the total price of that invoice.
Then I obtain a Stream<Invoice>, map it to a Stream<BigDecimal> and then reduce it to a BigDecimal.
Now, from an OOP design point I would a...
CommandError: You must set settings.ALLOWED_HOSTS if DEBUG is False
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The error msg leads one away from looking for this. Thanks for posting.
– scharfmn
Jul 8 '16 at 7:07
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How do you post to an iframe?
...re a way to save the content of the output frame to a file (e.g., response from the server to which the form has been submitted) ?
– ZeroGraviti
Jul 20 '16 at 0:39
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Preferred Github workflow for updating a pull request after code review
...nge to an Open Source project on Github, and received code review comments from one of the core team members.
2 Answers
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Difference between Build Solution, Rebuild Solution, and Clean Solution in Visual Studio?
...far it takes this)
Rebuild solution will clean and then build the solution from scratch, ignoring anything it's done before. The difference between this and "Clean, followed by Build" is that Rebuild will clean-then-build each project, one at a time, rather than cleaning all and then building all.
C...
@selector() in Swift?
...ing Swift 3 / Xcode 8 and Swift 4 / Xcode 9):
You can construct a Selector from a Swift function type using the #selector expression.
let timer = Timer(timeInterval: 1, target: object,
selector: #selector(MyClass.test),
userInfo: nil, repeats: false)
button.addTar...
Convert integer to binary in C#
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Convert from any classic base to any base in C#
String number = "100";
int fromBase = 16;
int toBase = 10;
String result = Convert.ToString(Convert.ToInt32(number, fromBase), toBase);
// result == "256"
Supported bases are 2, 8,...
Where is Maven' settings.xml located on mac os?
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I created a symlink to it from ~/.m2: ln -s /usr/share/maven/conf/settings.xml settings.xml
– craig
Dec 3 '12 at 15:57
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Difference between Mutable objects and Immutable objects [duplicate]
...ct's data) cannot change after construction. Examples of immutable objects from the JDK include String and Integer.
For example:(Point is mutable and string immutable)
Point myPoint = new Point( 0, 0 );
System.out.println( myPoint );
myPoint.setLocation( 1.0, 0.0 );
Syst...
Batch files - number of command line arguments
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Googling a bit gives you the following result from wikibooks:
set argC=0
for %%x in (%*) do Set /A argC+=1
echo %argC%
Seems like cmd.exe has evolved a bit from the old DOS days :)
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