Labs

These labs require writing on paper or a whiteboard.

1. Create a class diagram to depict a BankAccount.

   public class BankAccount {
    private double balance;
    private String accountId;
   
    public BankAccount(String accountId, double balance) {
      super();
      this.accountId = accountId;
      this.balance = balance;
    }
   
    public String getAccountId() {
      return accountId;
    }
   
    public void withdraw(double amount) {
      balance -= amount;
    }
   
    public void deposit(double amount) {
      double tempBalance = balance;
      tempBalance = tempBalance + amount;
      balance = tempBalance;
    }
   
    public double getBalance() {
      return balance;
    }
   }
   

2. Add a class diagram to represent a User class.

3. User has a first name and last name.
4. A User can have 0 to 5 BankAccounts.
5. User has a no-arg constructor.
6. User has public String getFirstName(), public void setFirstName(String), public String getLastName(), public void setLastName(String).
7. User has a method to add a BankAccount to its array of accounts.
8. User has a public method called getAccounts that returns its array of accounts.

(Solution: ObjectsUML/src/userBankAccount.png)

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