Scala’s one of the best features is REPL (Read-Evaluate-Print-Loop). They have already integrated some functional programming features as part of Java 8, such as lambda expressions. Oracle Corporation is trying to integrate most of Scala features into Java. It supports multi-paradigm (Object-Oriented and Functional Programming) and REPL. As you know, Scala has become very popular to develop from small to large-scale applications because of it’s features and advantages. Let’s first try to understand why REPL support was added in Java, if it was that important then why in so late release. Today we will look into Java REPL basics and run some test programs in jshell interface.
#Scala repl how to#
It might be elementary but I am absolutely unable to grasp where I am going wrong or how to fix this.Java REPL or jshell is the new tool introduced in java 9. sbt server started at local:sbt-server-ff142d10856e0dc0f951īut after this, as soon as I type console, I get the same InvalidPath exception message. set current project to anka2 (in build file:/C:/Users/anka2/) loading project definition from C:\Users\anka2\project "C:\Program Files (x86)\sbt\\bin\sbt-launch.jar" I tried identifying the error in format by running sbt -verbose and this is what I'm getting:- C:\Users\anka2>sbt -verbose (Compile / console) : Illegal char at index 0: "C:\Windows\System32 at .runWorker(ThreadPoolExecutor.java:1149) at $RunnableAdapter.call(Executors.java:511)
at sbt.CompletionService$$anon$2.call(CompletionService.scala:64) at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:265) at sbt.Execute.$anonfun$submit$1(Execute.scala:282) at $.wideConvert(ErrorHandling.scala:23) at sbt.Execute.$anonfun$submit$2(Execute.scala:282) at .$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:62) at scala.Function1.$anonfun$compose$1(Function1.scala:49) at sbt.Defaults$.$anonfun$consoleTask$1$adapted(Defaults.scala:2037) at sbt.Defaults$.$anonfun$consoleTask$1(Defaults.scala:2043) at .ClasspathUtil$.makeLoader(ClasspathUtilities.scala:103) at .ClasspathUtil$.makeLoader(ClasspathUtilities.scala:115) at .ClasspathUtil$.toLoader(ClasspathUtilities.scala:48) at .ClasspathUtil$$anon$2.(ClasspathUtilities.scala:50) at .ClasspathUtil$.javaLibraryPaths(ClasspathUtilities.scala:62) at .$anonfun$map$1(TraversableLike.scala:285) at .ClasspathUtil$.$anonfun$javaLibraryPaths$1(ClasspathUtilities.scala:62) at .WindowsFileSystem.getPath(WindowsFileSystem.java:255) at .WindowsPath.parse(WindowsPath.java:94) at .WindowsPathParser.parse(WindowsPathParser.java:77) at .WindowsPathParser.parse(WindowsPathParser.java:153) at .WindowsPathParser.normalize(WindowsPathParser.java:182) : Illegal char at index 0: "C:\Windows\System32 set current project to variables (in build file:/C:/Users/anka2/Scala_Samples/Variables/) loading global plugins from C:\Users\anka2\.sbt\1.0\plugins welcome to sbt 1.4.5 (Oracle Corporation Java 1.8.0_271) No sbt.version set in project/build.properties, base directory: C:\Users\anka2\Scala_Samples\Variables Neither build.sbt nor a 'project' directory in the current directory: "C:\Users\anka2\Scala_Samples\Variables" Now when I type sbt or sbt about in the command prompt, it works fine but as soon as I type sbt console, I get the following error message: C:\Users\anka2\Scala_Samples\Variables>sbt console msi installer from scala-lang downloads page.
#Scala repl windows 10#
I am working on Windows 10 OS and installed sbt 1.4.5 from the.
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