Question

Which of the following code is correct?

(choose more than one)

A. ArrayList list = new ArrayList<>(); (3.4);
B. ArrayList list = new ArrayList<>(); (3.4);
C. ArrayList list = new ArrayList<>(); (3);
D. ArrayList list = new ArrayList<>(); (3);

Answer 1

Option C, ArrayList list = new ArrayList<>(); (3), is the correct code. Options A, B, and D are incorrect due to syntax errors.

Step-by-step explanation:

The correct code is option C: ArrayList list = new ArrayList<>(); (3);

Option C initializes an ArrayList object called 'list' with no initial elements and assigns it to the reference variable 'list'. The number '3' in the parentheses is irrelevant to the code and can be removed without affecting the code's correctness.

Options A and B have a decimal value (3.4) inside the parentheses, which is not valid syntax for initializing an ArrayList. Option D has a number inside the parentheses (3), but does not include the semicolon at the end of the statement, making it invalid code.