Hi Nigel, I checked the article which you have provided but unable to understand what exactly is the int enum pattern?
In prior releases, the standard way to represent an enumerated type was the int Enum pattern: // int Enum Pattern - has severe problems! public static final int SEASON_WINTER = 0; public static final int SEASON_SPRING = 1; public static final int SEASON_SUMMER = 2; public static final int SEASON_FALL = 3;
It means that standard way of implementing enums was as you quoted, that is using integer constants. Note that typesafe enum pattern was still not significantly more difficult, and enum keyword is just some syntactic sugar upon such pattern.
Enums are a great way to implement simple Strategy classes with a fixed set of implementations.
The only drawback of enums is that they can't inherit from other classes (because they already implicitely inherit from the enum base class)..
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