new对象时，先执行赋值初始化语句，然后执行构造方法

new对象时，先执行赋值初始化语句，然后执行构造方法

package aaa;

class Meal {
Meal() { System.out.println(“Meal()”); }
}

class Bread {
Bread() { System.out.println(“Bread()”); }
}

class Cheese {
Cheese() { System.out.println(“Cheese()”); }
}

class Lettuce {
Lettuce() { System.out.println(“Lettuce()”); }
}

class Lunch extends Meal {
Lunch() { System.out.println(“Lunch()”); }
}

class PortableLunch extends Lunch {
PortableLunch() { System.out.println(“PortableLunch()”);}
}

public class Sandwich extends PortableLunch {
private Lettuce l = new Lettuce();
public Sandwich() { System.out.println(“Sandwich()”); }//new对象时，先执行赋值初始化语句，然后执行构造方法
private Bread b = new Bread();
private Cheese c = new Cheese();
public static void main(String[] args) {
new Sandwich();
}
}

结果：
Meal()
Lunch()
PortableLunch()
Lettuce()
Bread()
Cheese()
Sandwich()