About Question enthuware.ocpjp.i.v11.2.3105 :

[dimitrilc]

Greetings, is this explanation,

The List.of/Set.of methods return an unmodifiable List/Set. So, if you try to clear the List returned by List.of, an OperationNotSupportedException will indeed be thrown.

talking about something like this?

Code: Select all

//Will run fine
ArrayList<String> als = new ArrayList<>(List.of("a", "b", "c"));
als.clear();

//Throws java.lang.UnsupportedOperationException at runtime
List<String> als2 = List.of("a", "b", "c");
als2.clear();

[admin]

Yes, that is correct. (The statement should say UnsupportOperationException instead of OperationNotSupportedException though). Fixed.

[nnavlani]

a clarification. So the answer in this case should be 3, or, "It will throw an java.lang.UnsupportedOperationException at //2." cause once an exception is there, then the regular flow is broken, and it will try to go to the catch or finally (if there) or out to main, but the next line of printing will not be executed.

[admin]

No, the given code will not throw an UnsupportedOperationException. Please go through the detailed explanation given for option 4.