Scala & Spark-Master Big Data with Scala and Spark - Lists introduction

The video tutorial introduces the concept of lists in Scala, emphasizing their immutability and how they function similarly to linked lists. It covers the syntax for creating lists, highlighting their heterogeneous nature, allowing different data types. The tutorial demonstrates accessing list elements using indexing and iterating over them with for loops. Practical examples are provided to illustrate these concepts, ensuring a comprehensive understanding of list operations in Scala.

What is a key characteristic of lists in Scala?

• They are immutable.

• They can only store integers.

• They are mutable.

• They are not linked lists.

Which keyword is used to declare an immutable list in Scala?

• Const

• Let

• Val

• Var

What does it mean when a list is described as heterogeneous?

• It can contain different data types.

• It can only contain numbers.

• It can only contain strings.

• It cannot be indexed.

What happens if you try to access an index that is out of bounds in a Scala list?

• It returns zero.

• It raises an exception.

• It returns the last element.

• It returns null.

How can you iterate over each element in a Scala list?

• Using a while loop.

• Using a do-while loop.

• Using a for loop.

• Using a switch statement.