info.md

code examples

• twitter

styleguide

• spark creator

online editor

• execute code online
• execute code online with ability to draw graphics
  • https://scalafiddle.io/sf/KOsXSKv/0
  • https://scalafiddle.io/sf/4beVrVc/1

Shell, Console

shell scripting

tutorials

• overview
• collection performance
• online documentation, api
• scala for java programmers
• scala templates and tutorials
• spark scala tutorial
• spark scala tutorial

scalac

exception: "IO error while decoding .... with UTF-8"

solution:

add double quota to "-classpath" parameter

compile class with classpath

scalac -classpath "/home/technik/.sdkman/candidates/spark/2.3.0/jars/*" udt.scala

compile code into jar

scalac -classpath "/home/technik/.sdkman/candidates/spark/2.3.0/jars/*" udt.scala -d udt.jar