Java Accounts and Transaction Classes

Develop Java classes so we can manage bank accounts and typical banking transactions. There are three types of transactions: deposit, withdrawal, balanceRequest:

    -a deposit is used to increase the amount in an account

    -a withdrawal is used to decrease the amount in an account a balance request causes a display on System.out

    -Most transactions specify a date, a type, an amount, and an account number.



Class and its Fields



    balance – integer value






    lastSeq – a static field as identifier for the transaction, just like lastId in Student

    sequenceNumber - to be generated using lastSeq



    amount – amounts are positive integers




You need to create following Bank Accounts:

account number   initial balance     owner

1901    1100     Nancy

1902    1000     Alex

1903    1900     Juby

1904    900      James

1905    1200     Jason


One constructor is required for the account class: public Account (String accountNumber, int balance, String owner). Account class must have a toString method to display the accountNumber, balance, and owner.



You need to create following Transactions:

dateOf          type        amount  account

Jan 1, 2019     deposit     1000 1901

Jan 2, 2019     deposit     1000 1902

Jan 3, 2019     deposit     3000 1904

Jan 4, 2019     deposit     4000 1903

Jan 5, 2019     withdrawal 250     1903

Jan 6, 2019     withdrawal 1500 1903

Jan 7, 2019     deposit 4   000     1905

Jan 8, 2019     balanceRequest 1901

Jan 8, 2019     balanceRequest 1903

Jan 8, 2019     balanceRequest 1905


Transaction class must have a toString method to display all fields including the sequence number.


Two constructors are required for Transaction class:

public Transaction(String dateOf, String type, Account account) 

public Transaction(String dateOf, String type, int amount, Account account)



Note that sequenceNumber is assigned to a transaction in the same manner that id was assigned to a Student in the example on our textbook.

What you need to implement:

1. Create the accounts.

2. Create the transactions.

3. Display all of the accounts and transactions.

4. Apply the transactions to the accounts (in the order the transactions are listed above) and then display all of the accounts again.

5. Display any account with a balance over 2000.


Hint: You can put all of the methods for tasks 3, 4, and 5 in another class, while the main method of this class should do nothing but only call other necessary methods.

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