gistfile1.java

package java112.labs2;

import java.util.*;

/**
 * @author Eric Knapp
 * class MapDemo
 *
 */
public class MapDemo {

    public void run() {

        Map<String, String> map = new HashMap<String, String>();

        map.put("WI", "Wisconsin");
        map.put("MI", "Michigan");
        map.put("IL", "Illinois");
        map.put("MN", "Minnesota");
        map.put("FL", "Florida");
        map.put("AK", "Alaska");

        System.out.println(map);

        Map<String, String> map2 = new TreeMap<String, String>(map);

        System.out.println(map2);

        Map.Entry entry = null;
        Set set = map.entrySet();

        //java 4
        for (Iterator iterator = set.iterator(); iterator.hasNext();) {
            entry = (Map.Entry)iterator.next();
            System.out.println(entry.getKey() + " = " + entry.getValue());
        }

        //java 5
        for (Map.Entry<String, String> entry2 : map.entrySet()) {
            System.out.println(entry2.getKey());
        }



    }



    public static void main(String[] args) {
        MapDemo demo = new MapDemo();
        demo.run();
    }
}