我的代码里面好像有点问题啊，求教各位大佬

Question

public class SavingAccount extends Account { private double interestRate; public SavingAccount(double balance,double interest_rate){  this.balance=balance;//这个类的父类里面有balance这个属性  interestRate=interest_rate; } public void addInterest(){balance+=balance*interestRate;} public double getInterestRate(){return interestRate;}}

Answer 1

this.balance=balance;改成super.balance=balance;试试

Answer 2

private double balance;

Answer 3

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