CODEWITHSUNDEEP
javascala
vijayashankard
vijayashankard

Reputation: 751

Scala import class in same folder

I am a beginner in Scala coming from Java background. I have two singleton object definition in two files as below.

LongLines.scala

import scala.io.Source

object LongLines {

  def processFile(filename: String, width: Int) {
    val source = Source.fromFile(filename)
    for (line <- source.getLines)
      processLine(filename, width, line)
  }

  private def processLine(filename: String,
      width: Int, line: String) {

    if (line.length > width)
      println(filename +": "+ line.trim)
  }
}

FindLongLines.scala

object FindLongLines {
def main(args: Array[String]) {
  val width = args(0).toInt
  for (arg <- args.drop(1))
    LongLines.processFile(arg, width)
}

}

I have first compiled LongLines.scala with the below command

[root@vm test_longlines]# scalac LongLines.scala 
[root@vm test_longlines]# ls
FindLongLines.scala  LongLines.class  LongLines$.class  LongLines.scala

Now, When I try to run with the below command I am getting cannot find symbol for 'LongLines'.

[root@vijayvm test_longlines]# scala -cp . FindLongLines.scala 10 LongLines.scala 
/home/scala/dev/test_longlines/FindLongLines.scala:5: error: not found: value LongLines
    LongLines.processFile(arg, width)
    ^

one error found

Should I gave to import LongLines in FindLongLines.scala ? Both are in the same folder but I have used package.

Upvotes: 3

Views: 8140

Answers (2)

pedrorijo91
pedrorijo91

Reputation: 7845

1st, you didn't compile FindLongLines.scala also?

2nd, in Scala you may have more than one object/class in a single File. Maybe it's overkill to separate so small objects in two files for a command line application

Upvotes: 2

Duzzz
Duzzz

Reputation: 191

Add the import line to the top

import package_name._

or

import package_name.longlines

Upvotes: 2

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