Product2 is a trait in Scala, which is a Cartesian product of two elements. In build-in classes it can be considered as tuple of two elements. The Linear Supertypes here are Product, Equals, Any, and the sub-class here is Tulple2. Product2 extends Product like below:
Product2[+T1, +T2] extends Product
Here, T1 and T2 are the types of the elements.
Now, lets see some examples.
Here, _1 is the extension for the first element of the product stated above and _2 is the extension for the second element of the product.
List(Nidhi, Nisha, Preeti)
Hence, Iteration is easily done here.
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