1, public static void main (string, arg [])
The Arg [] is an array of String variables.
2, Javac -verbose see compilation details
3, Java -Prof Hello Show
4, JavaP Tell you where is class come from
5, What's Super, The Think in Java Page 201,
6, combination and inheritance, IS-a is a problem, use inheritance to express, and Has-a problem, there is a problem to express it. In the new Class use the original Class function, not an interface, is a combination technology. It is embedded in Class. If you have to transform the Class up, then you must use inherit, and transform the New Class to Base Class.
7, Final:
