Typesafe Enum pattern

// Up to JDK 1.4
public class TypesafeEnum
	{
	private final String name;
	private TypesafeEnum(String name)
		{
		this.name = name;
		}
	public static final TypesafeEnum FILE = new TypesafeEnum("file");
	public static final TypesafeEnum EDIT = new TypesafeEnum("edit");
	public static final TypesafeEnum FORMAT = new TypesafeEnum("format");
	public static final TypesafeEnum VIEW = new TypesafeEnum("view");
	public String toString()
		{
		return name;
		}
	}
 
// Since JDK 1.5
public enum TypesafeEnum {FILE, EDIT, FORMAT, VIEW};