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I was trying to understand how Java enum really works and I have come to the conclusion that it is very similar to a normal Java class that has its constructor declared private. I have just come to this conclusion and it isn't based on much thinking, but Id like to know whether I miss anything. So below is an implementation of a simple Java enum and an equivalent Java class. public enum Direction { ENUM_UP(0, -1), ENUM_DOWN(0, 1), ENUM_RIGHT(1, 0), ENUM_LEFT(-1, 0); private int x; private int y; private Direction(int x, int y){ this.x = x; this.y = y; } public int getEnumX(){ return x; } public int getEnumY(){ return y; } } What is the difference in meaning between the code above and below? public class Direction{ public static final Direction UP = new Direction(0, -1) ; public static final Direction DOWN = new Direction(0, 1) ; public static final Direction LEFT = new Direction(-1, 0) ; public static final Direction RIGHT = new Direction(1, 0) ; private int x ; private int y ; private Direction(int x, int y){ this.x = x ; this.y = y ; } public int getX(){ return x; } public int getY(){ return y; } }

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