[HD Pg 0, Sec. 14.1.5 - the-removeif-method]

[Ancuta_CIRLAN]

The example in this section gives "UnsupportedOperationException" because lists created with List.Of are unchangeable. Methods such as add or remove cannot be applied. The book says that the display will be [1,3,5].


Example from the book.

"
List<Integer> iList = List.of(1, 2, 3, 4, 5, 6);
Predicate<Integer> p = x->x%2==0;
iList.removeIf(p);
System.out.println(iList);

The above code prints [1, 3, 5] .
"

[admin]

Which build/version of the book are you seeing this in?
In "Wednesday 21 st October, 2020" Build 2.4, I see a new ArrayList in there. See attached screenshot.

test.png (81.3 KiB) Viewed 3465 times

[Ancuta_CIRLAN]

Oh...I'm sorry. It's about 18th Sep 2019 Build 1.7. I did't know it was a new book.

[admin]

No, it is the same book but we try to make best use of the On Demand Publishing model to apply corrections as soon as possible.