import com.gfc.collection.GFCMap; public class GFCExample { public static void main(String[] args) { GFCMap<String, Integer> map = new GFCMap<>(); map.put("Alice", 25); map.put("Bob", 30); System.out.println("Age of Alice: " + map.get("Alice")); System.out.println("Age of Bob: " + map.get("Bob")); } }