public class Hash_Map_Demo {
public static void main(String[] args) {
// Creating an empty HashMap
HashMap<Integer, String> hash_map = new HashMap<Integer, String>();
// Mapping string values to int keys
hash_map.put(10, "Geeks");
hash_map.put(15, "4");
hash_map.put(20, "Geeks");
hash_map.put(25, "Welcomes");
hash_map.put(30, "You");
// Displaying the HashMap
System.out.println("Initial Mappings are: " + hash_map);
// Creating a new hash map and copying
HashMap<Integer, String> new_hash_map = new HashMap<Integer, String>();
new_hash_map.putAll(hash_map);
// Displaying the final HashMap
System.out.println("The new map looks like this: " + new_hash_map);
}
}