The World’s Largest Online Community for Developers
Newest 'scala' Questions - Page 2 - LavOzs.Com
Questions tagged [scala]
Scala is a general-purpose programming language principally targeting the Java Virtual Machine. Designed to express common programming patterns in a concise, elegant, and type-safe way, it fuses both imperative and functional programming styles. Its key features are:
an advanced static type system with type inference;
function types; pattern-matching; implicit parameters and conversions; operator overloading; full interoperability with Java; concurrency
I'm trying to make a CSV (with headers) parser that extracts a row into a case class. I want the extraction to rely on the header to affect (instead of relying on the case class parameters being in ...
I have a list of playing cards defined by:
case class Card(suit : String, value : String)
Example value ("clubs", "7") is suit = clubs and value = 7. A list contains a pair of cards when both suits ...
I am trying to run the Akka Distributed Workers project following the guide here https://developer.lightbend.com/guides/akka-distributed-workers-scala/
On run, it fails with series of error messages. ...
I Have a series of tests that need to pass one of them includes deleting the buffer between the defined region (which is between the marker and cursor) and inserting the cut text in the paste. I then ...
I have got probably easy and quick question regarding the DataFrames in the Scala in Spark.
I have an existing Spark DataFrame (operate with Scala 2.10.5 and Spark 1.6.3) and would like to add a new ...
In my build.sbt the scala version is "2.11.12"
and Intellij version is 2019.2 community edition
and class path also having the same scala jar's version
When I running a scala class I got below error....
What I am trying to do:
select a 4 column row as only 2 columns - 1 key column col_0 and other col_info as concatenated other columns with '|' as delimiter.
group by a key column (col_0).