in scala
trait Product1

`abstract trait` Product1 [+T1]
  `extends` java.lang.Object
  `with` scala.Product
  `with` scala.ScalaObject

  Product1 is a cartesian product of 1 components

Direct Known Subclasses:
  Tuple1

Def Summary
`abstract` | `def` _1 : T1 projection of this product
`override` | `def` arity : scala.Int The arity of this product.
`override` | `def` element (n: scala.Int) : T1 Returns the n-th projection of this product if 0<=n<arity, otherwise null.

Def inherited from scala.Product
arity , element, productPrefix

Def Detail

`abstract def` _1 : T1

  projection of this product

`override def` arity : scala.Int

  The arity of this product.

Returns:
  1

`override def` element (n: scala.Int): T1

  Returns the n-th projection of this product if 0<=n<arity, otherwise null.

Parameters:
  `n -` number of the projection to be returned
Returns:
  same as _(n+1)
Throws:
  `IndexOutOfBoundsException -`