We had an introductory Java presentation and discussion on Wednesday, Apr 15. Mike took some pictures and posted them.

     http://www.flickr.com/photos/mikelevin/sets/72157623733215193/

By the end of the meeting, we had produced the following program, which remembers people's favorite foods.

---

GatorJUG.java

---

import java.util.*;
import java.io.*;

public class GatorJUG {
    public static void main(String[] args) throws IOException {
        Map<String,String> foodMemory = new TreeMap();
        InputStreamReader streamReader = new InputStreamReader(System.in);
        BufferedReader reader = new BufferedReader(streamReader);
        while(true) {
            System.out.println("What is your name?");
            String name = reader.readLine();
            if(name.equals("secret")) {
                System.out.println(foodMemory);
            } else {
                String food = foodMemory.get(name);
                if(food == null) {
                    System.out.println("What is your favorite food, "+name+"?");
                    food = reader.readLine();
                    foodMemory.put(name,food);
                }
                System.out.println(name+", your favorite food is "+food);
            }
        }
    }
}

---

To run this program, you'll need the Java Development Kit version 1.6 (JDK6) from http://java.sun.com/javase/downloads/index.jsp

After installing JDK6, compile the program with the command:

     javac GatorJUG.java

This produces a compiled version of the program in GatorJUG.class. Now
run the program with the command:

     java GatorJUG

I hope everyone enjoyed learning a little about Java programming. Please let me know if this is something that you think is worth doing again, and share any ideas for topics you would like to learn more about.

---

My favorite programming language is Clojure. If anyone is interested in a free introduction to programming in Clojure, there is an online course being offered at

     http://rubylearning.com/blog/2010/03/09/clojure-101-a-new-course/

If you sign up for a rubylearning account, you can join the Clojure 101 course by clicking on that course, then clicking on the key icon, and entering the enrollment key: Clojure101