Question

Design a class named BankAccount that contains: A private int data field named id for the account. A private double data field named balance for the account. A constructor that creates an account with the specified id and initial balance. A getBalance() method that shows the balance. A method named withdraw that withdraws a specified amount from the account. Create a subclass of the BankAccount class named ChequingAccount. An overdraftlimit to be 1000 for ChequingAccount . Test your ChequingAccount class by constructing a ChequingAccount object with id as 10020, and balance as 1000, and show the result of withdrawing 200 from the chequing account. it should be in java

Answer 1

BankAccount.java

public class BankAccount {
   // Data members
   private int id;
   private double balance;

   // Parameterized constructor to initialize data members
   public BankAccount(int id, double balance) {
       this.id = id;
       this.balance = balance;
   }

   // Getter function for balance
   public double getBalance() {
       return this.balance;
   }

   // Withdraw given amount
   public void withdraw(double amount) {
       this.balance -= amount;
   }

}

ChequingAccount.java

public class ChequingAccount extends BankAccount {

   private double overdraftlimit = 1000;

   // Call super constructor to initialize data members
   public ChequingAccount(int id, double balance) {
       super(id, balance);
   }

   @Override
   public void withdraw(double amount) {
       // Allow user to only withdraw amount if it doesn't exceed the overdraftlimit
       if (amount <= this.getBalance() + overdraftlimit) {
           super.withdraw(amount);
       } else {
           System.out.println("Can't withdraw");
       }
   }
}

BankAccountTest.java

public class BankAccountTest {

   public static void main(String[] args) {
       // Create ChequingAccount object
       // Print the balance
       // Withdraw 200
       // Print balance again
       ChequingAccount acc = new ChequingAccount(10020, 1000);
       System.out.println("Balance: " + acc.getBalance());
       acc.withdraw(200);
       System.out.println("Balance: " + acc.getBalance());
   }
}

OUTPUT