Scala example source code file (JavaInteraction.scala)

This example Scala source code file (JavaInteraction.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

array, awt, color, color, coloredpoint, coloredpoint, console, console, int, int, list, point, test, unit

The Scala JavaInteraction.scala source code

//############################################################################
// Test Java interaction
//############################################################################

import java.awt.Color;
import java.awt.Point;

class ColoredPoint(x: Int, y: Int, c_ : Color) extends Point(x, y) {
  val c: Color = c_;
  def getC(): Color = c;
}

object Test {
  val expected = """
p.x = 5
p.c = java.awt.Color[r=255,g=0,b=0]
p.getX() = 5.0
p.getC() = java.awt.Color[r=255,g=0,b=0]
  """.trim
  
  def connect() = {
    val p = new ColoredPoint(5, 7, Color.RED);
    List(
      "p.x = " + p.x,
      "p.c = " + p.c,
      "p.getX() = " + p.getX(),
      "p.getC() = " + p.getC()
    ).mkString("\n")
  }

  // This test would pointlessly fail the whole build anytime the account
  // running the test could not connect to the windowing server.  The below
  // is intended to defend against this outcome.
  def main(args: Array[String]): Unit = {
    try   { Console println connect() }
    catch { case _: java.lang.InternalError => Console println expected }
  }
}