关于JAVA类的初始化顺序

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JAVA中的初始化由以下几部分组成：属性，方法，static块，非static块，构造方法。以下给出一个测试程序：
public class Test {
public static void main(String[] args) {
new Student();
}
}

class Person {
static int age = 1;
public static void f1() {
  System.out.println("Person function()");
}
static {
  f1();
  System.out.println("Age = " + age + " Static Person");
}

public Person() {
  System.out.println("Age = " + age + " Construct Person");
}

{
  System.out.println("Age = " + age + " Non-Static Person");
}
}

class Student extends Person {
static String name = "lisi";
public static void f2() {
  System.out.println("Student function()");
}
static {
  f2();
  System.out.println("Name = " + name + " Age = " + age + " Static Student");
}

public Student() {
  System.out.println("Name = " + name + " Age = " + age + " Construct Student");
}

{
  System.out.println("Name = " + name + " Age = " + age + " Non-static Student");
}
}

以上代码中，除了主类外，还定义了两个类，Student类继承Person类。每个类中都含有属性，方法，static块，非static块，构造方法。执行后，输出如下：
Person function()
Age = 1 Static Person
Student function()
Name = lisi Age = 1 Static Student
Age = 1 Non-Static Person
Age = 1 Construct Person
Name = lisi Age = 1 Non-static Student
Name = lisi Age = 1 Construct Student

从输出内容可以看出，在某一个类中类总是会先初始化属性和方法，接着是static块，非static块，构造方法。构造方法是最后才执行的哟！如果该类继承父类，则会先初始化父类的属性和方法，再是static块，然后是自己的属性和方法和static块，然后是父类的非static块和构造方法，最后是自己的非static块和构造方法。这里的非static块可以看成是构造之前的初始化代码块。

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