class A { public A() { System.out.println(“hello from a”);
题目内容(请给出正确答案)
单选题
class A { public A() { System.out.println(“hello from a”); } } class B extends A { public B () { System.out.println(“hello from b”); super(); } } public class Test { public static void main(String args[]) { A a = new B(); } } What is the result when main is executed?()