https://blog.csdn.net/s2940086379/article/details/46711387

如题，面试题如下：

请输入下面代码的运行结果--------extends\-----------

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) {
		new HelloB();
	}
}

运行结果如下：

static A
static B
I'm A class
HelloA
I'm B class
HelloB

[java类内部代码执行顺序](https://www.notion.so/java-152c9683fd4880db99f7e3e74b729c95)