The video tutorial addresses the problem of code duplication in a Java multiplication table program. It explains how similar code across multiple methods can lead to inefficiencies and maintenance challenges. The tutorial introduces refactoring as a solution, demonstrating how to restructure code to eliminate duplication without altering functionality. By refactoring, changes can be made in one place, improving code maintainability and readability. The video emphasizes the importance of continuous code improvement and provides practical examples of refactoring techniques.

What is the main issue with the multiplication table code as discussed in the first section?

• It uses too many variables.

• It has a lot of code duplication.

• It runs too slowly.

• It is too complex to understand.

How can the code duplication problem be addressed according to the second section?

• By increasing the number of methods.

• By using a single method to handle similar tasks.

• By using a different programming language.

• By adding more comments.

What is the purpose of refactoring as explained in the final section?

• To add more features to the code.

• To make the code run faster.

• To improve the code structure without changing its functionality.

• To change the functionality of the code.

What is a key benefit of refactoring code?

• It makes the code more readable and maintainable.

• It eliminates the need for testing.

• It reduces the number of lines of code.

• It automatically fixes all bugs.

Why is it important to save changes to a Java file before running it?

• To make the file larger.

• To prevent the file from being deleted.

• To ensure the changes are compiled and executed.

• To change the file format.