Why regex extract return wrong value in scala [closed]

val pattern = “[A-Z]{2,3}[0-9]{4}”.r val extractedData = pattern.findFirstIn(“find ABCD1234”) I have the above code to look for valid data. Input: find DTD0001 Expected Output: …

Caused by: java.lang.ClassNotFoundException: play.api.libs.functional.syntax.package

I am getting this following error (Caused by: java.lang.ClassNotFoundException: play.api.libs.functional.syntax.package) while I am trying to run my code I have right dependencies and added right Jar …

Is it possible to shade some package in only one package in sbt?

let’s consider a following source code: assemblyShadeRules in assembly ++= Seq( ShadeRule.rename(“com.google.common.**” -> “my_package.@1”) .inAll ) It renames com.google….

How to call Scala curry functions from Java with Generics

A Scala code has a retry mechanism which is based on currying function: object RetryUtil { def retry[T](retry: Int, timeout: FiniteDuration)(exc: => T): T = { // } } I want to call this …

How to get corresponding quarter of previous year in Scala

I have a date string with me in the format – “20202” [“yyyyQ”]. Is there a way to get the corresponding quarter of previous year ? ex- for 20202 , it should be 20192

Akka Quickstart: An illegal reflective access operation has occurred

When running the official Akka Quickstart on my Mac terminal, I get this error: Getting org.scala-sbt sbt 1.2.8 … WARNING: An illegal reflective access operation has occurred WARNING: Illegal …

is scala OpenHashMap remove operator threadsafe

Sorry but I cannot find in the network a direct answer to a very simple questions. is scala OpenHashMap remove operator threadsafe? Regrds.

Apache spark and scala, error while executing queries

I am working with a dataset whose sample is as follows: “age”;”job”;”marital”;”education”;”default”;”balance”;”housing”;”loan”;”contact”;”day”;”month”;”duration”;”campaign”;”pdays”;”previous”;”…

Spark read file from S3 using sc.textFile (“s3n://…)

Trying to read a file located in S3 using spark-shell: scala> val myRdd = sc.textFile(“s3n://myBucket/myFile1.log”) lyrics: org.apache.spark.rdd.RDD[String] = s3n://myBucket/myFile1.log MappedRDD[…

Creating a Java Enum in Scala

My workplace has been experimenting in moving from Java to Scala for some tasks, and it works well for what we’re doing. However, some preexisting logging methods expect a java.lang.Enum. The logging …