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

public class TryhashMap
{   
    public static void main(String arg[]) 
    {    HashMap ageMap = new HashMap();

        ageMap.put("elephant", new Integer(120));
        ageMap.put("dog", new Integer(15));
        ageMap.put("cat", new Integer(20));    
        ageMap.put("turtle", new Integer(100));
        ageMap.put("human", new Integer(75));
        
        System.out.println("Print out the entire ageMap\n" + ageMap);
        // search for the value associated with "dog"
        System.out.println("A dog can live to age " + ageMap.get("dog"));
        System.out.println();
        // keySet returns a set view of the keys contained in this map.
        System.out.println(ageMap.keySet());

        // iterate through the keySet, doing something to each item
        Iterator itr = ageMap.keySet().iterator();          
        while (itr.hasNext()) System.out.println(itr.next());
        System.out.println();
        
        Iterator itr2 = ageMap.values().iterator();
        while (itr2.hasNext()) System.out.println(itr2.next());   
     }  // end main    
}  // end TryhashMap