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Method chaining - why is it a good practice, or not?
.... In the OP's example:
participant.getSchedule('monday').saveTo('monnday.file')
...there's no guarantee (as an outside developer looking at the code) that getSchedule will actually return a valid, non-null schedule object. Also, debugging this style of code is often a lot harder since many IDEs...
Difference between SPI and API?
...rial and other revision control systems. However, the code that deals with files (the API side) does not need to care if there is a version control system, or what it is.
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Insert new column into table in sqlite?
...aling with foreign keys.
My workaround is to export the database to a sql file making sure that the INSERT statements include column names. I do it using DB Browser for SQLite which has an handy feature for that. After that you just have to edit the create table statement and insert the new column ...
When do you use Java's @Override annotation and why?
...sert the annotations as default behavior, we get a lot of cluttered source files. When reading 1.6 code, you cannot see from the @Override annotation if a method actually overrides a method in the superclass or just implements an interface.
Using @Override when actually overriding a method in a sup...
Why does String.valueOf(null) throw a NullPointerException?
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A bug, numbered 4867608 was filed for this way back in 2003, which was resolved as "won't fix" with this explanation.
We can't change this due to compatibility constraints. Note that it is
the public static String valueOf(char data[]) method which ends...
What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
I used JSLint on a JavaScript file of mine. It threw the error:
8 Answers
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What is the correct way to represent null XML elements?
...present in a previous version of your application.
So say you have an xml file from your application "ReportMaster" version 1.
Now in ReportMaster version 2 a some more attributes have been added that may or not be defined.
What is an xs:NCName type and when should it be used?
I ran one of my xml files through a schema generator and everything generated was what was expected, with the exception of one node:
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Is there any haskell function to concatenate list with separator?
...acter is also added to the end. (This makes it useful for serializing text files, which must per POSIX standard end with a trailing newline)
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Convert ArrayList to String[] array [duplicate]
...l fields or methods because every array support only:
[] operator,
length filed,
methods inherited from Object supertype,
So it is not arrays interface which is making it impossible. Problem is that Object[] array beside Strings can store any objects (for instance Integers) so it is possible that ...