Class to be used for questions 1 and 2:

public class AccountRecord implements Serializable { private int accountNo; private String fullName; private double balance; // initialize a record public AccountRecord(int acctNo, String name, double bal) { setAccountNo( acctNo ); setFullName( name ); setBalance( bal ); } // end four-argument AccountRecord constructor // set account number no public void setAccountNo( int acctNo ) { accountNo = acctNo; } // end method setAccountNo // get account number no public int getAccountNo() { return accountNo; } // end method getAccountNo // set full name public void setFullName( String name ) { fullName = name; } // end method setFullName // get full name public String getFullName() { return fullName; } // end method getFullName // set balance public void setBalance( double bal ) { balance = bal; } // end method setBalance // get balance public double getBalance() { return balance; } // end method getBalance } // end class AccountRecord

1. Make a public class called ReadAccounts. This class will read a file ("accountsData.bin") where the data is "Byte-based stream". Once read the file should print the total sum of the balance sheets and their average (Use the AccountRecord class mentioned above)

2. Make a public class called WriteAccounts. This class will write in a

file ("accountsData.bin") where the data is "Byte-based stream". The program

must ask several accounts, and save the data in a file (Use the class

AccountRecord).