Static Variables and Methods

AP Computer Science A· difficulty 3/5

public class Item {
    private static int next = 1;
    private int id;
    public Item() { id = next; next++; }
    public int getId() { return id; }
}
// ...
Item a = new Item();
Item b = new Item();
Item c = new Item();
System.out.println(c.getId());

What is printed?

A
$3$
check_circle
B
$1$
C
$2$
D
$0$

Explanation

next starts at 1; each constructor assigns the current value to id and increments next, so a=1, b=2, c=3.

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