java 构造函数的执行顺序

在此我用类似《Thinking in Java》的一个例子来说明

pakage com.yqs.test

class Milk {
publcic Milk() {
System.out.println("Constrator Milk be called!");
}
}

class Bread {
public Bread(){
System.out.println("Constrator Bread be called!");
}
}

class Apple {
public Apple(){
System.out.println("Constrator Apple be called!");
}
}

class Orangle extends Apple{
public Orangle(){
System.out.println("Constrator Orangle be called!");
}
}

class Water extends Orangle {
public Water(){
System.out.println("Constrator Water be called!");
}
}

public class Test {
Milk m = new Milk();
Water w = new Water();
Bread b = new Bread();
public Test() {
System.out.println("Constrator Test be called!");
}
}

执行的结果是：
Constrator Milk be called!
Constrator Apple be called!
Constrator Orangebe called!
Constrator Water be called!
Constrator Test be called!

所以java构造函数的执行顺序是：
先出现先执行，派生类要先执行其父类的构造函数
本文出自 “小杨” 博客，请务必保留此出处http://yqsshr.blog.51cto.com/469059/132257