abstract class AbstractPlayer implements Player {
    
    private final String name;

    AbstractPlayer(String name) {
	this.name = name;
    }

    public final String getName() {
	return name;
    }

    public final String getShortName() {
	return String.valueOf(name.charAt(0));
    }

    public final String toString() {
	return name;
    }

    public final int hashCode() {
	return name.hashCode();
    }

    public final boolean equals(Object o) {
	if (!(o instanceof Player)) return false;
	Player that = (Player)o;
	return this.getName().equals(that.getName());
    }
}