Selenium WebDriver with Java - Basics to Advanced and Frameworks - Practice Exercise Printing Unique Number- Amazon Inte

The video tutorial explains how to find unique numbers in an array using Java. It introduces the problem, discusses the use of ArrayList to solve it, and provides a step-by-step implementation. The tutorial also covers testing and debugging the code to ensure it works correctly.

What is the main task described in the problem introduction?

• Reversing the elements of an array

• Sorting an array in ascending order

• Identifying unique numbers and their counts in an array

• Finding the sum of all numbers in an array

What is the expected output format for the problem?

• A single number representing the sum

• A list of numbers in ascending order

• A boolean indicating if duplicates exist

• A list of unique numbers and their counts

Which data structure is suggested to solve the problem of finding unique numbers?

• ArrayList

• LinkedList

• HashMap

• Stack

What is the purpose of using a variable 'K' in the algorithm?

• To store the index of the current element

• To count the occurrences of each number

• To store the sum of all numbers

• To track the maximum number in the array

What is the significance of using 'ArrayList' in this problem?

• It simplifies the process of reversing the array

• It provides a fixed size for the array

• It automatically sorts the elements

• It allows dynamic resizing of the array

In the code implementation, what is the initial value of the variable 'K'?

• 1

• 0

• 2

• 3

Why is it important to reset the 'K' variable inside the loop?

• To avoid memory overflow

• To reduce the number of lines of code

• To ensure it counts correctly for each new number

• To improve the speed of the algorithm

What issue was identified during the debugging process?

• The array was not initialized

• The loop was not iterating correctly

• The ArrayList was not being updated

• Duplicate numbers were being printed multiple times

How is the unique number identified in the final output?

• By checking if 'K' equals one

• By checking if 'K' is less than zero

• By checking if 'K' equals zero

• By checking if 'K' is greater than one

What is the main focus of the final testing and validation section?

• Checking the speed of the algorithm

• Verifying the code outputs the correct unique numbers

• Reducing the number of lines of code

• Ensuring the code compiles without errors