Scala & Spark-Master Big Data with Scala and Spark - Solution (Strings)

The video tutorial explains two methods to solve a quiz problem involving string length calculation. The first method involves declaring two strings, calculating their lengths separately, and summing them. The second method uses string concatenation to find the total length. Both methods are demonstrated with code examples, and their outputs are compared. The video concludes by emphasizing that both solutions are valid and depend on the user's familiarity with the programming language.

What is the initial step in solving the problem of finding the total length of two strings?

• Concatenate the strings first

• Find the length of one string

• Declare two string variables

• Declare two integer variables

In the first solution, what is done after finding the length of each string?

• The lengths are subtracted

• The lengths are added together

• The lengths are multiplied

• The lengths are concatenated

What is the key operation in the second solution before calculating the length?

• Subtracting the strings

• Concatenating the strings

• Reversing the strings

• Multiplying the strings

How does the second solution calculate the total length of the strings?

• By multiplying the lengths of individual strings

• By subtracting the lengths of individual strings

• By finding the length of the concatenated string

• By adding the lengths of individual strings

What is the main difference between the two solutions discussed?

• One uses integers, the other uses strings

• One calculates length separately, the other after concatenation

• One uses a loop, the other uses recursion

• One is faster, the other is slower

Which method is more suitable for beginners according to the video?

• Both methods are equally suitable

• Neither method is suitable

• The method using concatenation first

• The method using separate length calculation

What is the final output of both methods when applied to the strings 'ABC' and 'DE'?

• 5

• 2

• 6

• 3