Learn Java from Scratch - A Beginner's Guide - Step 02 - List Interface - Introduction - Position Is King

This video revisits the List interface in Java, focusing on its characteristics, such as being an ordered collection that allows duplicate elements. It highlights the importance of using the latest Java documentation and demonstrates creating and manipulating a List using Java 9's List.of method. The video also covers various List methods like size, contains, and indexOf, providing a practical understanding of how to work with Lists in Java.

What is the recommended way to find documentation for Java interfaces?

• Check online forums for documentation.

• Refer to Java 8 documentation only.

• Use any version of Java documentation.

• Search for Java 9 followed by the interface name.

What does it mean when a List is described as an 'ordered collection'?

• Elements are automatically sorted.

• Elements cannot be duplicated.

• Elements are stored in a random order.

• Elements can be inserted at any position.

Which method in Java 9 allows for easy initialization of a List?

• List.new()

• List.add()

• List.create()

• List.of()

In Java collections, which method is used to determine the number of elements?

• total()

• count()

• length()

• size()

How can you check if a List is empty?

• Using the length() method.

• Comparing with null.

• Checking if size() returns -1.

• Using the isEmpty() method.

What does the indexOf() method return if an element is not found in the List?

• -1

• 0

• An exception is thrown

• null

Which method would you use to verify if a specific element exists in a List?

• exists()

• contains()

• search()

• find()