internel classes in java

how to do this in java language?
public enum ChessPieceColor

Code:

---

{
    White,
    Black
}

public enum ChessPieceType
{
    King,
    Queen,
    Rook,
    Bishop,
    Knight,
    Pawn,
    None
}

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i did that already but then after that look at this how do i do this?

Code:

---

internal sealed class Piece
nternal ChessPieceColor PieceColor;
internal ChessPieceType PieceType;

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how do i u7se an internal class in java?

An example:

Code:

---

public class Outer {
  public static class Nested { ... }
  public class Inner { ... }
  void aMethod() {
      class Local { ... }
      JButton b= new JButton("test");
      // an anonymous class
      b.addActionListener(new ActionListener() {
        public void actionPerformed(actionEvent ae) { ... }
      });
  }
}

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The example shows the different forms of classes: static nested, just nested (an inner class), a local class and an anonymous class.

kind regards,

Jos