New to Java

Hi Friends,
I am trying to define a custom class that should extend Hashmap, I tried this:

public class MyClass extends HashMap<Score,Integer>{
     public MyClass(){
      //not sure what should be passed here to super
      super(Score,Integer);
     }
}

I need to initialize it like this:

MyClass map = new MyClass<Score,Integer>();

Can you please help.
Thanks