我的最后一種方法有問題。我被告知我必須在我的銀行類的每月費(fèi)用方法中使用我的 BankAccount.class 中的調(diào)整方法，但我無法弄清楚。我嘗試了多種不同的方法，但無法使其正常工作。我們需要用月費(fèi)調(diào)整賬戶余額。Bank.java:33：錯(cuò)誤：BankAccount 類中的方法調(diào)整不能應(yīng)用于給定類型；BankAccount.adjust(); ^必需：雙重發(fā)現(xiàn)：無參數(shù)原因：實(shí)際參數(shù)列表和正式參數(shù)列表長度不同 1 錯(cuò)誤Bank.java:33: 錯(cuò)誤：double 不能被取消引用 fee.adjust(); 1 個(gè)錯(cuò)誤Bank.java:33: 錯(cuò)誤：找不到符號 bank.BankAccount.adjust(); 符號：變量 BankAccount 位置：BankAccount[] 類型的變量銀行 1 錯(cuò)誤BankAccount.classpublic class BankAccount {String owner; // owner of accountint accountNumber; // integer account numberdouble balance = 0.0; // account balancedouble amount; // adjusted amount to balanceString balanceFmt = "%.2f"; // string format for 2 decimal placespublic BankAccount(String owner, int accountNumber) { //Constructor for the bank account   this.owner = owner;   this.accountNumber = accountNumber;}public double adjust(double amount) { //method to adjust balance   this.balance += amount;   return balance;}public String toString() { // method to print out account info   return owner + " owns the account " + accountNumber + " with the balance of $" + String.format(balanceFmt,balance);}public double getBalance() { // method to get balance of accounts   return balance;   }}銀行類public class Bank {BankAccount bank[];public Bank() { // constructor for making a 10 account array   bank = new BankAccount[10];}public void addAccount(BankAccount accounts) { // add account for giving numbers to accounts   for(int i = 0; i < bank.length; i++) {      if(bank[i] == null) {         bank[i] = accounts;         break;      }   }}BankAccount getAccount(int i) { //obtain account from BankAccount class   return bank[i];}