Scala Collections - Zip Method

zip() method is a member of IterableLike trait, it is used to merge a collection to current collection and result is a collection of pair of tuple elements from both collections.

Syntax

The following is the syntax of zip method.

def zip[B](that: GenIterable[B]): Iterable[(A, B)]

Here, zip method takes a collection as parameter. This method returns the updated collection of pair as result.

Usage

Below is an example program of showing how to use zip method −

Example

object Demo {
   def main(args: Array[String]) = {
      val list = List(1, 2, 3 ,4)
      val list1 = List("A", "B", "C", "D")
      //apply operation to create a zip of list
      val list2 = list zip list1
      //print list
      println(list2)      
   }
}

Save the above program in Demo.scala. The following commands are used to compile and execute this program.

Command

\>scalac Demo.scala
\>scala Demo

Output

List((1,A), (2,B), (3,C), (4,D))