java enum

gistfile1.java

public enum Orientation {
	East("E"), South("S"), West("W"), North("N");

	private final String id;

	private Orientation(String id) {
		this.id = id;
	}

	public String getId() {
		return id;
	}
}

我想从Orientation.East里可以取得缩写"E",也可以通过"E"获取East