Scala & Spark-Master Big Data with Scala and Spark - Solution (String Concatenation Function)

The video tutorial guides viewers through writing a simple program to concatenate two strings. It begins with an overview of the task, followed by a dry run using variables X and Y. The tutorial then demonstrates how to define a function for concatenation, specifying input and return types. Finally, the function is executed, and the concatenated result is printed, showcasing the successful implementation of the task.

What is the primary task described in the first section of the video?

• To write a program that concatenates two strings.

• To write a program that multiplies two numbers.

• To write a program that finds the length of a string.

• To write a program that sorts a list.

Which operator is used for string concatenation in the program?

• The division operator (/)

• The plus operator (+)

• The minus operator (-)

• The multiplication operator (*)

What are the expected inputs for the concatenation function?

• Two integers

• Two strings

• A string and an integer

• A list and a string

What does the concatenation function return?

• A list

• A concatenated string

• A boolean

• An integer

What is the output when the function is executed with the variables X and Y?

• hello world

• world

• hello

• world hello