Your problem is in this line: Message messageObject = new Message ();This error says that the Message class is not known at compile time. So you need to import the Message class. Something like this: Check this out. http://docs.oracle.com/javase/tutorial/java/package/usepkgs.html
import random imports the random module, which contains a variety of things to do with random number generation. Among these is the random() function, which generates random numbers between 0 and 1. Doing the import this way this requires you to use the syntax random.random(). The random function can also be imported from the module … Read more
Support for Python 3 was added in NumPy version 1.5.0, so to begin with, you must download/install a newer version of NumPy. Or simply using pip: