一、先执行内部静态对象的构造方法，如果有多个按定义的先后顺序执行；静态对象在构造的时候也是也先执行其内部的静态对象。
二、再调用父类的构造方法（父类还有父类的话，从最开始的基类开始调用），如果没有明显指定调用父类自定义的构造方法，那么编译器会调用默认的父类构造方法super()。但是如果要调用父类自定义的构造方法，要在子类的构造方法中明确指定。
三、按声明顺序将成员引用对象变量初始化。
四、最后调用自身的构造方法。
[java] view plain copy class Animal{ String name; Animal() { System.out.println("class Animal"); } Animal(String name){ this.name = name; System.out.println(name + " class Animal"); printNumber(); } public void printNumber(){ } } class Fish extends Animal{ Fish() { System.out.println("class Fish"); } } class GoldFish extends Fish { GoldFish() { System.out.println("class GoldFish"); } } class Cat { Cat(){ System.out.println("class cat"); } } class Rabbit { private static int number; private static Cat cat = new Cat(); public Rabbit() { number++; System.out.println(number + "class rabbit"); } } class Dog extends Animal{ public int dogNumber; private GoldFish goldFish = new GoldFish(); static Rabbit blackRabbit = new Rabbit(); static Rabbit whiterabbit = new Rabbit(); public Dog() { super("Tom"); System.out.println("class Dog"); dogNumber = 10; System.out.println("The dog's number is:" + dogNumber); } public void printNumber(){ System.out.println("The dog's number is:" + dogNumber); } } public class TestInheritanceConstructor extends Animal { public static void main(String[] args){ new Dog(); //Test the executive order of constructor } }
