IterateMap

package collectionImpl;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

public class IterateHashMap 
{
    public static void main(String a[])
    {
        Map<String, Integer> map = new HashMap<String, Integer>();
        map.put("java", 26);
        map.put("C++", 67);
        map.put("SQL", 21);
        map.put("Unix", 7);
        map.put("PHP", 36);
        map.put("Perl", 91);
        
		Iterator it = map.entrySet().iterator();
	    while (it.hasNext()) 
	    {
	        Map.Entry pair = (Map.Entry)it.next();
	        System.out.println(pair.getKey() + " = " + pair.getValue());
	        it.remove(); // avoids a ConcurrentModificationException
	    }        
   }
}