单选题

执行如下程序，输出结果是（ ） class MyTest { public static void main(String[] args) { Integer first = new Integer(3); Integer second = 3; int three = 3; System.out.println(first==second); System.out.println(first==three); } }

Question

A. falsetrue

B. falsefalse

C. truetrue

D. truefalse