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所以在我的 Java 课程作业中，我们必须修改一个类，然后在 Jgrasp 中编写一个测试器类，我的测试器类看起来像这样

public class BankAccountTester {
   public static void main(String[]args){
      BankAccount account = new BankAccount(1000);
      account.setFreeTrans(5);
      account.setTransFee(2);
      account.deposit(1000);
      account.withdraw(500);
      account.withdraw(400);
      account.deposit(200);
      System.out.println(account.getBalance());
      System.out.println("expected: 1300");
      account.monthlyCharge();
      System.out.println(account.getBalance());
      System.out.println("expected: 1300");
      account.deposit(1000);
      account.withdraw(500);
      account.withdraw(400);
      account.deposit(500);
      System.out.println(account.getBalance());
      System.out.println("expected: 1900");
      account.monthlyCharge();
      System.out.println(account.getBalance());
      System.out.println("expected: 1900");
      account.deposit(1000);
      account.withdraw(500);
      account.withdraw(400);
      account.deposit(200);
      account.deposit(500);
      account.withdraw(1000);
      System.out.println(account.getBalance());
      System.out.println("expected 1700");
      account.monthlyCharge();
      System.out.println(account.getBalance());
      System.out.println("expected 1698");
      account.deposit(1000);
      account.withdraw(500);
      account.withdraw(400);
      account.deposit(200);
      account.deposit(500);
      account.withdraw(1000);
      account.deposit(100);
      System.out.println(account.getBalance());
      System.out.println("expected 1598");
      account.monthlyCharge();
      System.out.println(account.getBalance());
      System.out.println("expected 1594");
      }
  }

所以我遇到的问题是它没有打印出我编程打印出来的所有值，它应该打印出看起来像这样的东西：

1300
expected: 1300
1300
expected 1300
1900
expected 1900
1900
expected 1900
1700
expected 1700
1698 
expected 1698
1598
expected 1598
1594
expected 1594

但相反，我得到的是：

1300.0
expected: 1300
1300.0
expected: 1300
1900.0
expected: 1900
1900.0
expected: 1900

有人知道这是什么吗，因为我无法弄清楚它会这样做的原因。请注意，此测试是在 JGrasp 的工作台上完成的。谢谢

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