Is it still relevant to replace enumeration structures with classes in Java?

I'm reading the effective java written by Joshua Bloch in 2008. A hint is to replace enumeration structures with classes This is an example from the book

public class Suit {
    private final String name;
    public Suit(String name) { this.name = name; }
    public String toString() { return name; }
    public static final Suit CLUBS = new Suit("clubs");
    public static final Suit DIAMONDS = new Suit("diamonds");
    public static final Suit HEARTS = new Suit("hearts");
    public static final Suit SPADES = new Suit("spades");
}

My question is that Java now supports enumeration types. Is it a good idea to use the above method? The following is an example of Java enumeration types

public enum Day {
    SUNDAY,MONDAY,TUESDAY,WEDNESDAY,THURSDAY,FRIDAY,SATURDAY 
}

Solution

The book "effective Java" was well written before introducing enumeration into the language, so I recommend using enumeration Fortunately, Java enumeration is very versatile, so you can use the enumeration function to pay close attention to Joshua's suggestions:

public enum Day {
    SUNDAY("Sunday",0),MONDAY("Monday",1),TUESDAY("Tuesday",2),WEDNESDAY("Wednesday",3),THURSDAY("Thursday",4),FRIDAY("Friday",5),SATURDAY("Saturday",6);

    private String name;
    private int ordinal;
    public String getName() { return name; }
    public int getOrdinal() { return ordinal; }
    public Day(String name,int ordinal) {
        this.name = name;
        this.ordinal = ordinal;
    }
}