java.util.Collection.scala Maven / Gradle / Ivy

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package java.util

trait Collection[E] extends java.lang.Iterable[E] {
  def size(): Int
  def isEmpty(): Boolean
  def contains(o: Any): Boolean
  def iterator(): Iterator[E]
  def toArray(): Array[AnyRef]
  def toArray[T <: AnyRef](a: Array[T]): Array[T]
  def add(e: E): Boolean
  def remove(o: Any): Boolean
  def containsAll(c: Collection[_]): Boolean
  def addAll(c: Collection[_ <: E]): Boolean
  def removeAll(c: Collection[_]): Boolean
  def retainAll(c: Collection[_]): Boolean
  def clear(): Unit
  def equals(o: Any): Boolean
  def hashCode(): Int
}