Java这段代码有什么错误！

Question

package tom.jiafei;public class Father { int height; protected int money; public int weight; public Father(int m) { money = m; } protected int getmoney() { return money; } void setMoney(int newMoney) { money = newMoney; }}import tom.jiafei.Father;public class Jerry extends Father{ public Jerry() { super(20); } public static void main(String[] args) { Jerry jerry = new Jerry(); jerry.height = 12; jerry.weight = 200; jerry.money = 800; int m = jerry.getmoney(); jerry.setMoney(300); System.out.println("m="+m); }}

Answer 1

父类protected int money; 子类Jerry jerry = new Jerry();jerry.money = 800;这里错了，protected的访问权限是本类，同包，继承类，你的Jerry是new出来的新对象