【think in java 笔记1】java变量初始化顺序

1、父类的static部分

2、子类的static部分

3、父类的域

4、父类的构造方法

5、子类的域

6、子类的构造方法

public class Insect {
    private int i = 9;
    protected int j ;
    private int k = printInit("super Insect.k initialized");
public Insect() {
System.out.println("super Insect constructor");
      System.out.println(" super i = " + i +"; j = " + j );
      j = 39;
}
    private static int x = printInit("super static insert.x1 initialized");
    static int printInit(String args){
    System.out.println(args);
    return 47;
    }
}

################################

public class Beetle extends Insect{
    private  int k = printInit("child Beetle.k initialized");
public Beetle() {
// TODO Auto-generated constructor stub
System.out.println("child Beetle constructor");
System.out.println("child  k = " + k);
System.out.println("child  j = " + j);
}
    private static int x2 = printInit("child static Beetle.x2 initialized");
    
    public static void main(String[] args){
    System.out.println("child Beetle static main");
    Beetle b = new Beetle();
    }
}

#########################

super static insert.x1 initialized
child static Beetle.x2 initialized
child Beetle static main
super Insect.k initialized
super Insect constructor
 super i = 9; j = 0
child Beetle.k initialized
child Beetle constructor
child  k = 47
child  j = 39