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.
Methods. 1  Methods do not have independent existence they are always defined with in class. 2  Methods are defined in object oriented languages like C#, Java. 3  Methods are called using instance or object. 4  Methods are used to manipuate instance variable of a class.