Java静态函数、父类、子类执行顺序

package class_test;
/**
* 静态函数、父类、子类执行顺序
* @author root
*
*/
public class Test {

public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.println("7");
A b = new B();
}

}

class A{
public static int i=generate();
public A(){
System.out.println("A");
}
public static int generate(){
i=5;
System.out.println(i);
return i;
}
}
class B extends A{
public static int j=generate();
public B(){
System.out.println("B");
}
public static int generate(){
j=6;
System.out.println(j);
return j;
}
}