Dot Notation

• The term dot notation refers to the syntax used to reference values and methods within an object or class.
  
  
• For instance,

  m.color = "yellow";
  

  sets the object named m's instance variable called color to the string value yellow.
  
  
• We've been using dot notation to call methods:

  System.out.println("Hi");
  
  

• This calls the println() method and is an example of nesting.
  
  
• The System class is part of the java.lang package.
  
  
• It has a class variable called out, which has a method named println().