修改类账户(附在黑板)提供 •整数级即时可变accountNum是类数 (不要忘了,您需要更改构造函数) •一种称为借记的方法,用于从账户中提取资金,并确保 的借方金额不超过账户的余额,如果确实如此,则余额应保持不变,并且方法应打印 表示“借方金额超过账户余额”。 •在方法getBalance()中,添加一行以打印出账号和 账号余额,那么在测试程序中,您只需键入 account1.getBalance();而不是printf语句。 AccountTest文件已被修改以测试您的新帐户类别,因此您不需要更改它。不断收到错误消息“无法找到符号 - 构造帐户(INT,双)
,这里是我的账户类
public class Account
{
private double balance;
public int accountNum;
public int Account;
public Account(double initialBalance, int accountN)
{
if (initialBalance > 0.0)
balance = initialBalance;
accountNum=accountN;
}
public void credit(double amount)
{
balance = balance + amount;
}
public void debit(double amount)
{
if (amount>=balance)
System.out.println("Debit amount exceeded account balance.");
else
balance-=amount;
}
public String getBalance()
{
return balance+" "+accountNum;
}
}
代码这里是代码,为AccountTest类
import java.util.Scanner;
public class AccountTest
{
// main method begins execution of Java application
public static void main(String args[])
{
Account account1 = new Account(1, 50.00); // create Account object
Account account2 = new Account(2, -7.53); // create Account object
// display initial balance of each object
account1.getBalance();
account2.getBalance();
// create Scanner to obtain input from command window
Scanner input = new Scanner(System.in);
double depositAmount; // deposit amount read from user
System.out.print("Enter deposit amount for account2: ");
depositAmount = input.nextDouble(); // obtain user input
System.out.printf("\nadding %.2f from account1 balance\n", depositAmount);
account2.credit(depositAmount); // add amount to account1
// display balances
account1.getBalance();
account2.getBalance();
// create Scanner to obtain input from command window
input = new Scanner(System.in);
double withdrawalAmount; // withdrawal amount read from user
System.out.print("Enter withdrawal amount for account1: ");
withdrawalAmount = input.nextDouble(); // obtain user input
System.out.printf("\nsubtracting %.2f from account2 balance\n", withdrawalAmount);
account1.debit(withdrawalAmount); // subtract amount from account2
// display balances
account1.getBalance();
account2.getBalance();
} // end main
} // end class AccountTest
我无法弄清楚什么是丢失请帮助感谢了一堆。
根据提示,我会假设这可能是家庭作业 – Ktash 2012-02-18 17:34:56