001    /**
002     * Part of setup for exercise 8.5
003     * 
004     * @author Kristian Torp, torp (at) cs (dot) aau (dot) dk
005     * @version 1.0
006     */
007    public class ConcreteClass {
008            /** instance variables - replace the example below with your own */
009            private int x;
010    
011            /**
012             * Constructor for objects of class ConcreteClass
013             */
014            public ConcreteClass() {
015                    /** initialise instance variables*/
016                    x = 0;
017            }
018    }