CODEWITHSUNDEEP
scalascala-swing
bstpierre
bstpierre

Reputation: 31176

How to compile scala swing app?

I'm using:

% scalac -version
Scala compiler version 2.9.1 -- Copyright 2002-2011, LAMP/EPFL

on Ubuntu 12.04.

This code is saved in HelloGui.scala:

import scala.swing._

object HelloGui extends SimpleSwingApplication {
  def top = new MainFrame {
    title = "Hello World GUI"
    contents = new Button {
      text = "Click me"
    }
  }
}

When I try to compile this I get:

% scalac HelloGui.scala        
HelloGui.scala:1: error: object swing is not a member of package scala
import scala.swing._
             ^
one error found

I've tried using import swing._ (it isn't clear from the tutorials which import path I need to use with this version of scala), and I get:

% scalac HelloGui.scala
HelloGui.scala:1: error: not found: object swing
import swing._
       ^
one error found

When I look in /usr/share/java, I see scala-swing-2.9.1.jar and scala-swing.jar as a symlink to it, so it seems like the libraries are present?

Am I missing a compiler flag or is there another package I need to install?

Upvotes: 0

Views: 1666

Answers (1)

bstpierre
bstpierre

Reputation: 31176

The compiler needs to have the path to the swing jar passed explicitly. This works:

% scalac -classpath /usr/share/java/scala-swing.jar HelloGui.scala

Upvotes: 2

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