Question

Here is basically what I have:

public class Game extends Activity{
    public class Work{
        public class Shuffle{
            *Class I need to access*
        }
    }
}

Here is the class I will be accessing Shuffle from:

public class Deck extends Game {
    public int shuffle() {
        //WHAT DO I NEED TO DECLARE HERE IN ORDER TO ACCESS Shuffle.getShuffle()?
        int[] shuffDeck = (MY SHUFFLE CLASS).getShuffle();
        int x = shuffDeck[i];
        String y = String.valueOf(x);
        i += 1;

        return x;
    }
}

What do I need to declare to be able to access Shuffle.getShuffle() in my Deck class?

Answer 1

Now taking of Nested Classes its of 2 types :

1. Inner Classes (Non-static)

2. Top Level Classes (static)

– Inner Class (Non-static) has an Implicit Reference to its Outer Class (Enclosing Class).
To access an Inner Class from outside you need to access it using the Outer Class Object.

Eg:

 public class Outer{


     class Inner{


     }

 }


public class Test{


   public static void main(String[] args){

         Outer o = new Outer();
         Outer.Inner i = o.new Inner();

    }
} 

– A Top-Level Class (static) is just like a separate class in the Outer Class.
Top-level class needs to create an object of the Outer Class to access its Non-static members, but It can Access the Static methods and Static variables of the Outer class directly.

Eg:

public class Outer{


         class Inner{


         }

     }


    public class Test{


       public static void main(String[] args){


             Outer.Inner i = new Outer.Inner();

        }
    }