Using enums in Java across multiple classes

I have the following class:

public class Card 
{
    public enum Suit 
    {
        SPACES, HEARTS, DIAMONDS, CLUBS
    };

    public Card(Suit nsuit, int nrank)
    {
        suit = nsuit;
       开发者_如何学Python rank = nrank;
    }

    private Suit suit;
    private int rank;
}

I want to instantiate it in another class, but that class doesn't understand the Suit enum. Where should I put the enum to make it publicly visible?

The Suit enum is inside the Card class, and you have to access it that way:

new Card(Card.Suit.SPADES, 1);

Or, you can import the Suit class from within Card, and access it directly:

import my.package.Card.Suit;
new Card(Suit.SPADES, 1);

The other option is to put Suit in its own class, as suggested by Bert.

Put Suit in its own class:

Suit.java:

public enum Suit 
{
    SPACES, HEARTS, DIAMONDS, CLUBS
}

The enum is already visible.

Card card = new Card(Card.Suit.CLUBS, 5);

will instantiate a new card.

Unrelated... but you might want to make the Spaces suit into the Spades suit. :)

The Suit enum is inside the Card class, and you have to access it that way:

Card.Suit suit = Card.Suit.CLUBS;