Java Enum equals
Description
You can compare for equality an enumeration constant with any other object by using equals(). Those two objects will only be equal if they both refer to the same constant, within the same enumeration.
Example
Compare for equality an enumeration constant with any other object.
enum Direction {/* w ww. ja v a 2 s. c o m*/
East, South, West, North
}
public class Main {
public static void main(String args[]) {
Direction ap = Direction.West;
Direction ap2 = Direction.South;
Direction ap3 = Direction.West;
if (ap.equals(ap2)){
System.out.println("Error!");
}
if (ap.equals(ap3)){
System.out.println(ap + " equals " + ap3);
}
if (ap == ap3){
System.out.println(ap + " == " + ap3);
}
}
}
The code above generates the following result.
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