Java中初始化基类的顺序问题2

//Stem.javaclass Component1{ Component1(int c){ System.out.println("Component1():"+c); }}class Component2{ Component2(int c){ System.out.println("Component2():"+c); }}class Component3{ Component3(int c){ System.out.println("Component3():"+c); }}class Root{ int r=4; Root(int r){ this.r=r; System.out.println("Root():"+r); } Component1 C1=new Component1(r); Component2 C2=new Component2(r); Component3 C3=new Component3(r);}public class Stem extends Root{ Stem(int s){ super(s+1); System.out.println("Stem():"+s); } Component1 C1=new Component1(0); Component2 C2=new Component2(0); Component3 C3=new Component3(0); public static void main (String[] args) { Stem s=new Stem(5); }} 

输出：

Component1():4
Component2():4
Component3():4
Root():6
Component1():0
Component2():0
Component3():0
Stem():5

从输出可以看出类的初始化顺序：父类成员，父类构造器，子类成员，子类构造器。