Question

公司考题，会JAVA的大神帮忙做下以下代码main方法运行后输出的结果，谢谢了

请写出如下代码的输出结果
class HelloA {
public HelloA() {
System.out.println("HelloA");
}

{ System.out.println("I'm A class"); }

static { System.out.println("static A"); }
}

public class HelloB extends HelloA {
public HelloB() {
System.out.println("HelloB");
}

{ System.out.println("I'm B class"); }

static { System.out.println("static B"); }

public static void main(String[] args) {
System.out.println("-main start-");
new HelloB();
new HelloB();
System.out.println("-main end-");
}
}

Answer 1

static A
static B
-main start-
I'm A class
HelloA
I'm B class
HelloB
I'm A class
HelloA
I'm B class
HelloB
-main end-