001    /**
002     * Exercise 2.7. The program prints three arguments from the command line.
003     * 
004     * @author Kristian Torp, torp (at) cs (dot) aau (dot) dk
005     * @version 1.0
006     */
007    public class Exercise2_7 {
008            /**
009             * The main method.
010             */
011            public static void main(String[] args) {
012                    // check exactly three arguments provided
013                    if (args.length != 3) {
014                            System.out.println("Provide exactly three arguments!");
015                    } else {
016                            // write out the arguments using a for loop
017                            for (int i = 0; i < args.length; i++) {
018                                    System.out.println(" " + i + " :" + args[i]);
019                            }
020                    }
021            }
022    }