About Question enthuware.ocpjp.v8.2.1762 :

[Martyjee]

The explanation contains the following:

2. Although the map part is not required because Item class overrides the toString method to print the name anyway, it is valid.

Actually it does not override toString so the map part is actually needed!

[admin]

You are right. Fixed.
thank you for your feedback!
Paul.

[mrmuiz]

One more thing, option one is not comparing for id attribute and is not syntactically correct:

Code: Select all

.sorted((a, b)->a.getName().compareTo(b.getId()))

you're trying to compare a String and a primitive integer.
Id should be String too for this to work, or it should be an Integer to be able to use compareTo() method to compare two ids

[admin]

Fixed.
thank you for your feedback!