Java 静态语句块、语句块、构造函数执行顺序

简单代码：

package example;

class Parent {
static String name = "hello";

{
System.out.println("3 parent block");
}

static {
System.out.println("1 parent static block");
}

public Parent() {
System.out.println("4 parent constructor");
}
}

class Child extends Parent {
static String childName = "hello";

{
System.out.println("5 child block");
}

static {
System.out.println("2 child static block");
}

public Child() {
System.out.println("6 child constructor");
}
}
package example;

public class StaticIniBlockOrderTest {
public static void main(String[] args) {
new Child();
}
}

输出结果：
1 parent static block

2 child static block

3 parent  block

4 parent constructor

5 child  block

6 child constructor

执行顺序总结：

1、执行父类静态代码块，执行子类静态代码块

2、执行父类非静态代码块，执行父类构造函数，执行子类非静态代码块，执行子类构造函数