127: Highlights

• Whenever a method is called, that method's arguments are evaluated, and copies of the resulting values are assigned to the method's parameters. Then, the statements in the method's body are evaluated. When a return statement is evaluated, the argument of the return expression is evaluated, and that value becomes the value of the method call.
• Every method in Java is defined inside a class definition.
• You can define many identically named methods, with identical patterns of parameter data types, as long as each of them appears in a different class.
• You can define many identically named methods in the same class, as long as each of them has a unique pattern of parameter data types.
• If you want to define a public class method, in a public class, then instantiate the following pattern:

  public class class name { 
   public static return type method name 
    (data type 1 parameter 1, 
     ..., 
     data type l parameter l) { 
    declaration 1 
    ... 
    declaration m 
    statement 1 
    ... 
    statement n 
   } 
  } 
  

• If you want to define a method that does not return a value, then supply void in place of an ordinary data-type declaration.
• If you want to call a class method from another class, then specify both the class and the method name, joining them by a period:

  class name.method name(ordinary arguments)