Question

Account that contains: balance: double data field date: Date data field. Use Date class from the java.util package accountNumber: long data field. You should generate this value randomly. The account number should be 9 digits long. You can you random method from java Math class. annuallnterestRate: double data field. customer: Customer data field. This is the other class that you will have to design. See description below. The accessor and mutator methods for balance, annuallnterestRate, date, and customer. The accessor methods for accountNumber. A constructor that creates an account with the specified customer, balance, and interest rate. Also, it should generate the account number and the current date. A method called getMonthlylnterestRate that returns the monthly interest rate. Monthly Interest Rate is the annuallnterestRate/12. A method called getMonthlylnterest that returns the monthly interest. Monthly interest is the balance * monthlylnterestRate A method called generateAccountNumber that returns a 9-digit number.

in java

Answer 1

Answer;

BankAccount.java

import java.util.Date;

public class BankAccount {

double balance;
Date date;
long accountNumber;
double annualInterestRate;
Customer customer;
public double getBalance() {
return balance;
}
public void setBalance(double balance) {
this.balance = balance;
}
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}
public double getAnnualInterestRate() {
return annualInterestRate;
}
public void setAnnualInterestRate(double annualInterestRate) {
this.annualInterestRate = annualInterestRate;
}
public Customer getCustomer() {
return customer;
}
public void setCustomer(Customer customer) {
this.customer = customer;
}
public long getAccountNumber() {
return accountNumber;
}

BankAccount(Customer c,double bal,double interest)
{
this.customer=c;
this.balance=bal;
this.annualInterestRate=interest;
this.accountNumber=generateAccountNumber();
this.date=new Date();

}

public double getMonthlyInterestRate()
{
return this.annualInterestRate/12;

}

public double getMonthlyInterest()
{
return (balance*getMonthlyInterestRate())/100;
}

public long generateAccountNumber()
{
return (long) (Math.random() * 1000000000);
}

public boolean deposit(double no)
{
if(no>0)
{balance=balance+no;
return true;}
return false;
}

public boolean withdraw(double no)
{
if(no>0 && no<=balance)
{
balance=balance-no;
return true;
}
return false;
}

public String toString()
{
return "\nBankAccount[Balance= "+balance+"\ndate= "+date+"\nAccountNumber= "+accountNumber+"\nInterestRate="+annualInterestRate+"\n"+customer+"]";
}

}

Customer.java

package shreya;

public class Customer {

String firstName,lastName,address;
int age;
int id;
static int custcount;
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}

Customer(String firstName,String lastName,String address,int age)
{
this.firstName=firstName;
this.lastName=lastName;
this.age=age;
this.address=address;
custcount++;
this.id=32000+((custcount-1)*10);

}

public String toString()
{
return "\nCustomer[ID="+id+"\nFirstName="+firstName+"\nLastName="+lastName+"\nAge="+age+"\nAddress="+address+"]";
}

public boolean equals(Customer c)
{
if(this==c)
return true;
else
return false;

}

}

MainImplementation.java

package shreya;

public class MainImplementation {

public static void main(String[] args) {
// TODO Auto-generated method stub
Customer c1=new Customer("Sarah","Smith","319 grand ave",24);
Customer c2=new Customer("John","Smith","12 nicollect",34);

System.out.println("customer-1 toString:");
System.out.println(c1);
System.out.println("\ncustomer-2 toString:");
System.out.println(c2);
BankAccount b1=new BankAccount(c1,1330.0,4.5);
System.out.println("Current balance :"+b1.getBalance());
b1.deposit(200);
System.out.println("Current balance :"+b1.getBalance());
System.out.println("Account Number : "+b1.getAccountNumber());
System.out.println("Account created date : "+b1.getDate());
System.out.println("Customer id : "+b1.getCustomer().id);
System.out.println("Monthly interest Rate : "+b1.getMonthlyInterestRate());
System.out.println("Monthly Interest : "+b1.getMonthlyInterest());
System.out.println("Account-1 toString output : ");
System.out.println(b1);

}

}

Output:

customer-1 toString:

Customer[ID=32000
FirstName=Sarah
LastName=Smith
Age=24
Address=319 grand ave]

customer-2 toString:

Customer[ID=32010
FirstName=John
LastName=Smith
Age=34
Address=12 nicollect]
Current balance :1330.0
Current balance :1530.0
Account Number : 909290549
Account created date : Fri Feb 08 15:20:12 IST 2019
Customer id : 32000
Monthly interest Rate : 0.375
Monthly Interest : 5.7375
Account-1 toString output :

BankAccount[Balance= 1530.0
date= Fri Feb 08 15:20:12 IST 2019
AccountNumber= 909290549
InterestRate=4.5

Customer[ID=32000
FirstName=Sarah
LastName=Smith
Age=24
Address=319 grand ave]]