JVM如何加载Java中的父类

代码:

class A {
    static {
        System.out.println("loading A static 1");
    }
    static {
        System.out.println("loading A static 2 B.c= "+B.c);        
    }
    static {
        System.out.println("loading static 3");
    }
    static int a=10; 
    A(){        
    }
}

class B extends A{
    static {
       System.out.println("loading B A.a= "+A.a);
    }
    static int c = 50;
}
public class Test {
    public static void main(String[] args) {
        new B();
    }
}

输出:

loading A static 1
loading A static 2 B.c= 0
loading static 3
loading B A.a= 10

从这里我们可以说父类在子类之后加载，而子类在父类之后初始化吗?如果是这样，JVM如何加载类层次结构?

...
[Loaded A from file:/.../src/main/java/]
[Loaded B from file:/.../src/main/java/]
loading A static 1
loading A static 2 B.c= 0
loading static 3
loading B A.a= 10
...