案例分析之运行顺序

public class shunXu {
    private static shunXu d = new shunXu();
    private SubClass t = new SubClass();
    


    public shunXu(){
        System.out.println(4);
    }
    public static void main (String [] args){
        System.out.println("hello word");
    }

}
class SuperClass{
    SuperClass(){
        System.out.println("构造方法SuperClass");
    }
}
class SubClass extends SuperClass{
    static{
        System.out.println(1);
    }
    public SubClass(){
        System.out.println(2);
    }
}