白旗仙javaリアルタイム学習11:列挙型

class Chess {
	enum Color {WHITE, BLACK}
}

enum Color {WHITE, BLACK, NONE}

Color color = Color.WHITE;
if (color == Color.BLACK) {
//...
}

public class Chess {
    public enum Color {
        WHITE("white"), BLACK("black");

        private String value;

        Color(String color) {
            this.value = color;
        }

        public String getValue() {
            return this.value;
        }
    }

    private Color color;

    public Chess(Color color) {
        this.color = color;
        System.out.println(color.getValue());
    }
}

Class<E> getDeclaringClass()
String name()
int ordinal() 
T valueOf(Class<T> enumtype, String name)

    public static void main(String[] args) {
        Color w = Color.valueOf("WHITE");
        System.out.println(w.getValue());
    }

Color[] colors = Color.values() //전체가 다 들어옴

private Color[] colors = Color.values()
public Color next() {
	return color[(this.ordinal()  + 1) % colors.length];
}