Learn Java from Scratch - A Beginner's Guide - Step 03 - Create a Method in a Java Class

The video tutorial explains how to add a method to a class in programming. It starts with creating a 'revolve' method in the Planet class, demonstrating the syntax and process. The tutorial highlights the need to recreate instances after adding a method and explains how to call the method using objects. An exercise is provided to create a 'coming soon' method in a Country class, reinforcing the concept of methods as actions performed on class instances.

What is the primary action that the planets perform in the Planet class?

• They revolve around the sun.

• They emit light.

• They rotate on their axis.

• They change color.

What is the return type of the revolve method defined in the Planet class?

• int

• String

• boolean

• void

What happens to existing variables when a new method is added to a class?

• They are preserved with their values.

• They are deleted permanently.

• They are converted to static variables.

• They are reset and lose their values.

Why can't the revolve method be called using Planet.revolve()?

• Because revolve is a private method.

• Because revolve is an abstract method.

• Because revolve is a static method.

• Because revolve is a non-static method.

How do you call the revolve method for an instance of the Planet class?

• revolve()

• Planet.revolve()

• revolve.earth()

• earth.revolve()

What is the purpose of the coming soon method in the Country class?

• To change the country's name.

• To print the name of the country.

• To print a message indicating future actions.

• To calculate the population of the country.

What is the analogy used to describe a class in the video?

• A library

• A template

• A machine

• A blueprint