Scala example source code file (collections.scala)

This example Scala source code file (collections.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

collections, collections, hashset, int, int, observableset, observableset, unit, unit

The Scala collections.scala source code

package mixins;

import scala.collection.mutable._;

class Collections extends HashSet[Int] with ObservableSet[Int] {
  override def +=(elem: Int): this.type = super.+=(elem);
  override def -=(elem: Int): this.type = super.-=(elem);
  override def clear: Unit = super.clear;

}

object collections extends Collections;

//class Collections1 extends HashSet[Int] with ObservableSet[Int,Collections1];
//object collections1 extends Collections1;