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

運行結果：

1
構造方法SuperClass
2
4
hello word

static 修飾的總是伴隨著類一塊運行，t在d之前運算，因為d運行的時候t還沒結束。

private static shunXu d = new shunXu();
    private SubClass t = new SubClass();
 

案例分析之運行順序