【java in think】构造器的调用顺序

class Meal
{

    public Meal()
    {
        System.out.println("Meal()--构造啦！");
    }

}

class Bread
{

    public Bread()
    {
        System.out.println("Bread()--构造啦！");
    }

}

class Cheese
{

    public Cheese()
    {
        System.out.println("Cheese()--构造啦！");
    }

}

class Lettuce
{

    public Lettuce()
    {
        System.out.println("Lettuce()--构造啦！");
    }

}

class Lunch extends Meal
{

    public Lunch()
    {
        System.out.println("Lunch()--构造啦！");
    }

}

class PortableLunch extends Lunch
{

    public PortableLunch()
    {
        System.out.println("PortableLunch()--构造啦！");
    }

}

public class Sandwich extends PortableLunch
{
    private Bread bread = new Bread();
    private Cheese cheese = new Cheese();
    private Lettuce lettuce = new Lettuce();

    public Sandwich()
    {
        System.out.println("Sandwich()--构造啦！");
    }
    public static void main(String[] args)
    {
        new Sandwich();
    }
}

class Insect
{
    private int i = 9;
    protected int j;

    public Insect()
    {
        System.out.println("i=" + i + "  j=" + j);
        j = 39;
    }

    private static int x1 = printInit("static Insect x1");

    protected static int printInit(String s)
    {
        System.out.println(s);
        return 47;
    }
}

class Beetle extends Insect
{

    private  int k = printInit("Beetle k ");
    
    public Beetle()
    {
        System.out.println("k=" + k + "  j=" + j);//这个j是父类的
        
        j = 25;
    }

    private static int x2 = printInit("static Beetle x2");
    public static void main(String[] args)
    {
        System.out.println("Beetle constructor");
        Beetle beetle = new Beetle();

　　　　　System.out.println();
　　　　　System.out.println("Beetle constructor2");
　　　　　Beetle beetle2 = new Beetle();

    }
    
}
//输出结果
/*
static Insect x1
static Beetle x2
Beetle constructor
i=9  j=0
Beetle k 
i=47  j=39

Beetle constructor2
i=9 j=0
Beetle k
k=47 j=39

*/