Include jar file in Scala interpreter

Question

Is it possible to include a jar file run running the Scala interpreter?

My code is working when I compile from scalac:

scalac script.scala -classpath         


        

Answer 1

In scala2.8,you can use

scala>:jar JarName.jar

to add a jar to the classpath.

In Scala 2.8.1, it is not :jar but :cp

And in Scala 2.11.7 it is not :cp but :re(quire)

Answer 2

In Scala version 2.11.6 from scala REPL use :require, can best be figured out by using :help from REPL

For example:

$ scala
Welcome to Scala version 2.11.6 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_45).
Type in expressions to have them evaluated.
Type :help for more information.
scala> :require lift-json_2.11-3.0-M5-1.jar
Added '<path to lift json library>/lift-json/lift-json_2.11-3.0-M5-1.jar' to classpath.

Answer 3

Scala version 2.11.5:

Here is an example of adding all jars in your ivy cache:

scala -cp /Users/dbysani/.ivy2/cache/org.apache.spark/spark-streaming_2.10/jars/*

scala> import org.apache.spark.streaming.StreamingContext
import org.apache.spark.streaming.StreamingContext

You can also create a local folder of all the jars that you need to get added and add it in a similar way.

Hope this helps.

Answer 4

Include multiple jars int Scala REPL 2.10.0-RC2

scala -classpath my_1st.jar:my_2nd.jar:my_3rd.jar

Answer 5

in my case i am using Scala code runner version 2.9.2. and i had to add quotation marks. I am using this jar files:

jdom-b10.jar, rome-0.9.jar

and everything goes fine with this:

scala -classpath "*.jar" feedparser.scala

Answer 6

According to scala executable help all options of scalac are allowed , so you can run scala -classpath some.jar, i've just tried and it looks like it works