I'm just starting to teach myself Java, and I'm having a terrible time
setting up a simple enum.  I'm 99.9% sure the syntax is correct,
because I've checked it with numerous online tutorials, but I still
get errors.  Here is my file:

Player.java:

package my.game;

public class Player {

    public enum Controller {HUMAN, COMPUTER}

    private String name;
    private boolean isHuman; //I want to change this to be of type
Controller
    private int money;
}

and my errors, all on the line with the enum, are

enum cannot be resolved to a type
Syntax error on token "~", ReferenceType expected   (in Eclipse, this
error focuses on H in HUMAN)
Syntax error, insert ";" to complete BlockStatements
Syntax error, insert ";" to complete ClassBodyDeclarations

and the warning

'enum' should not be used as an identifier, since it is a reserved
keyword from source level 5.0 on

Thanks for you help,
Colin