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【单选题】
分析以下代码public class Test { public static void main(String[] args) { new B(); }}class A { int i = 7; public A() { System.out.println("i from A is " + i); } public void setI(int i) { this.i = 2 * i; }}class B extends A { public B() { setI(20); // System.out.println("i from B is " + i); } public void setI(int i) { this.i = 3 * i; }}
A.
没有调用类A的构造函数。
B.
调用类A的构造函数，输出“i from A is 7”。
C.
调用类A的构造函数，输出“i from A is 40”。
D.
调用类A的构造函数，输出“i from A is 60”。
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