Hash Map
import java.util.HashMap;
public class HashMapDemo
{
public static void main(String[] args)
{
HashMap<Integer,String> map=new HashMap<Integer, String>(); // defines type of key and values
map.put(1, "aaaa"); // adds elements to hashmap as key-value pairs.
map.put(2, "bbbb");
System.out.println("Value at index 1: "+map.get(1)); // gets the value from Hashmap specifying the index.
}
}
Output:
Value at index 1: aaaa