例子一

public class Test {

    public static Test t1 = new Test(1);
    public static Test t2 = new Test(2);

    public Test(int i) {
        System.out.println("构造方法" + i);
    }

    {
        System.out.println("构造块");
    }

    static {
        System.out.println("静态块");
    }

    public static void main(String[] args) {
        System.out.println("start");
        new Test(3);
        System.out.println("end");
    }
}

// 输出：
构造块
构造方法1
构造块
构造方法2
静态块
start
构造块
构造方法3
end

所有static的执行顺序为从上到下

http://blog.csdn.net/lanxuezaipiao/article/details/16753743

http://liujiacai.net/blog/2014/07/12/order-of-initialization-in-java/

http://www.importnew.com/21832.html