When One Method calls Another Method, I want to know which of these are true in Java Programming / Coding.
1. Class & Instance Methods of One Class may call the public class methods of another class using Dot Notation and referencing the name of the other class.
2. Class & Instance Methods of One Class may call the public instance methods of another class by using Dot Notation to invoke a method on an instance method of the other class.
3. Instance Methods of a class may call ONLY using Dot Notation, any class method of the same class.
I've felt conflicted on this in AP Java and I can only guess Statements #1. and #3 are true. as my sample projects tend to follow this trend (but I can't say for sure unless I know the full extent and limits of what could happen). I would like help on this and I would appreciate it.