//Instantiate a class that we created. public class Field { public static void main(String[] args) { Month January = new Month(); //create our first object System.out.println(January.name + " " + January.length); January.name = "January"; January.length = 31; System.out.println(January.name + " " + January.length); System.exit(0); } } //A Month holds a name and a length. Here is a blueprint: class Month { //not public; can be mentioned only within package String name; //These are the fields of the class. int length; };