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What is the purpose of a question mark after a type (for example: int? myVariable)?
... as object or MyClass, will, on the other hand, be null. You might want to read up on the difference between value types and reference types.
– Klaus Byskov Pedersen
Jun 30 '17 at 22:39
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Using IntelliJ to amend git commit message
...or View->Tool Windows->Version Control.
– CODE-REaD
Jan 18 '18 at 18:45
3
In Idea 2017.3 th...
How do I purge a linux mail box with huge number of emails? [closed]
...mail -N
d *
quit
-N Inhibits the initial display of message headers when reading mail or editing a mail folder.
d * delete all mails
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Should I use encodeURI or encodeURIComponent for encoding URLs?
...ily when I said the webserver would do it, but whatever library you use to read your form data will take care of it for you.
– Quentin
Dec 27 '10 at 18:29
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filename and line number of python script
... source code
In a sense, you can "dump" a whole file into its cache , and read it with linecache.cache data from class.
import linecache as allLines
## have in mind that fileName in linecache behaves as any other open statement, you will need a path to a file if file is not in the same directory ...
git visual diff between branches
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For readers: As of my post, every answer here gives a way to do what the person asked for (a diff in a GUI) except for this answer.
– G Huxley
Mar 1 '17 at 20:53
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Java Logging vs Log4J [closed]
... no to all of them, JUL will be more than adequate and it's conveniently already included in the SDK.
That said, pretty much every project these days seems to wind up including log4j, if only because some other library uses it.
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How to convert hashmap to JSON object in Java
... The Map.Entry<K,V>> entrySet() is meant for iteration of a map. Reading the keys and searching the map for each key is a suboptimal way.
– Martin
Apr 20 at 13:42
ad...
Preferred way to create a Scala list
... want to focus on immutability in Scala generally by eliminating any vars.
Readability is still important for your fellow man so:
Try:
scala> val list = for(i <- 1 to 10) yield i
list: scala.collection.immutable.IndexedSeq[Int] = Vector(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
You probably don't eve...
Overload with different return type in Java?
...nature is - the name of the method + the types and order of its parameter. Read the link I've provided in my answer: "The signature of the method declared above is: calculateAnswer(double, int, double, double)". See that the return type is not included, @konmik.
– Oded
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