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Scala example source code file (CountButton.scala)

This example Scala source code file (CountButton.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Scala tags/keywords

button, buttonclicked, frame, frame, gridpanel, label, mainframe, me, me, my, no, number, number, press

The Scala CountButton.scala source code

package scala.swing
package test

import scala.swing._ 
import scala.swing.event._ 

object CountButton extends SimpleSwingApplication {
  def top = new MainFrame {
    title = "My Frame"
    contents = new GridPanel(2, 2) {
      hGap = 3
      vGap = 3
      val button = new Button {
        text = "Press Me!"
      }
      contents += button
      val label = new Label { 
        text = "No button clicks registered" 
      }
      contents += label
      
      listenTo(button) 
      var nclicks = 0 
      reactions += { 
        case ButtonClicked(b) => 
          nclicks += 1 
          label.text = "Number of button clicks: "+nclicks 
      }
    }
  }
}

Other Scala examples (source code examples)

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