我在代碼的注釋中添加了我的問題。class Parent{    int num =9; //I think num in Parent class is overrided by the num in Child class. why is the num in the first line of output is still 9?    { //code block        System.out.println("Parent constructor code..."+num);    }    Parent(){        System.out.println("Parent constructor run");         show(); //why does this method here invoke the show() method in Child class?    }    void show() {        System.out.println("Parent show..."+num);    }}class Child extends Parent{    int num = 8;     {        System.out.println("Child constructor code..."+num);        num = 10;    }    Child(){         System.out.println("Child constructor run");         show();     }    void show() {        System.out.println("Child show..."+num);    }}public class Test {    public static void main(String[] args) {        new Child();    }}輸出是：父構(gòu)造函數(shù)代碼...9父構(gòu)造函數(shù)運(yùn)行子顯示...0子構(gòu)造函數(shù)代碼...8子構(gòu)造函數(shù)運(yùn)行子顯示...10感謝你們！我發(fā)現(xiàn)這是一個可變的陰影和隱藏問題。