Map: keySet()
/*
Key Adobe; Value Mountain View, CA
Key IBM; Value White Plains, NY
Key Learning Tree; Value Los Angeles, CA
*/
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
public class MainClass {
public static void main(String[] argv) {
Map map = new HashMap();
map.put("Adobe", "Mountain View, CA");
map.put("IBM", "White Plains, NY");
map.put("Learning Tree", "Los Angeles, CA");
Iterator k = map.keySet().iterator();
while (k.hasNext()) {
String key = (String) k.next();
System.out.println("Key " + key + "; Value " + (String) map.get(key));
}
}
}
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