// enums/NonEnum.java

// (c)2021 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

public class NonEnum {

public static void main(String[] args) {

Class<Integer> intClass = Integer.class;

try {

for(Object en : intClass.getEnumConstants())

System.out.println(en);

} catch(Exception e) {

System.out.println("Expected: " + e);

}

}

}

/* Output:

Expected: java.lang.NullPointerException

*/