不太明白程序的流程,跪求大虾能解释一下流程

[st_victory]

public class $$$$$$$$$$$$$$$$$$$$$$$$$$$4 {
public static void main(String[] args){
A11 a = new B11();
}

}
class A11{
A11(){test();}
public void test(){
System.out.println("HelloWorld!");
}
}
class B11 extends A11{
int i =10;
B11(){super();}
public void test(){
System.out.println(i);
}
}
跪求大叔能解释一下程序的流程啊??