Static Variables and Methods

AP Computer Science A· difficulty 3/5

public class Widget {
    private static int count = 0;
    public Widget() { count++; }
    public static int getCount() { return count; }
}
// ...
new Widget();
new Widget();
new Widget();
System.out.println(Widget.getCount());

What is printed?

A
$3$
check_circle
B
$1$
C
$0$
D
$Compile-time error$

Explanation

The static variable count is shared among all instances; each constructor call increments it, so after three instances count is 3.

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