The Fission Theory: This theory proposes that the Moon was once part of the Earth and somehow separated from the Earth early in the history of the solar system.
When you actually use that class to make a THING, this is what you make. A method is a bit of code that can be called when needed (often as part of an class, but not always) Here's an example: I write a class called Ball. In my main code, I then write a=Ball.new, b=Ball.new, c=Ball.new.
Difference between class and object. Many programmers still get confused by the difference between class and object. In object-oriented terminology, a Class is a template for Objects and every Object must belong to a Class. The terms Class and Object are related to one another and each term holds its own distinct meaning.