Project 2

CHALLENGE-10

All the banks operating in India are controlled by the RBI. RBI has set a well defined guideline (e.g. minimum interest rate, minimum balance allowed, maximum withdrawal limit etc) which all banks must follow. For example, suppose RBI has set the minimum interest rate applicable to a savings bank account to be 4% annually; however, banks are free to use 4% interest raate or to set any rates above it.

Write a JAVA program to implement bank functionality in the above scenario and demonstrate the OOPs concepts and explain how it is actually satisfying that concept.

Note:

• Create a console application for the banking management system.
• Create few classes namely Customer, Account, RBI (Base Class) and few derived classes (SBI, ICICI, PNB etc). Assume and implement required member variables and functions in each class.
• In every Bank there should be at least 2 types of account saving and current.
• Saving should give simple interest and Current should provide compound interest on deposited amount.
• In the current account the interest is compounded twice a year (on half yearly its compounded).
• For Every type of account at least 2 users will be there.
• On the running of the application it should ask which bank we want to access.
• Then what type of account you have.
• And then for which user account we want to access.
• Minimum amount for saving account is 2000/- and for current account is 5000/-
• And we can calculate the interest for any given time and total amount as well.
• Interest rates for saving will be 5% annually and for current it will be 8% annually.
• Before calculating interest it should ask the user for how many years you want to calculate it.
• Write code to calculate both types of interests as well for any of the users.

For total amount on Simple Interest:

A = P(1 + rt)

Where:

A = final Amount

P = initial Principal balance

r = annual interest rate

t = time (in years)

So, Total Interest = (A - P)

For total amount on Compound Interest:

𝐴 = (1 + 𝑟𝑛)𝑡

A = final Amount

P = initial Principal balance

r = annual interest rate

t = time (in years)

n = number of times interest is compounded per year

Sample Input	Sample Output
Want to open an account?	yes/No
If yes, Insert name, type of account and date of birth, in which bank you want	Account has been opened and account no is: 123
Want to print mini statement	If yes, save it in .txt file somewhere
Calculate interest	If yes, calculate and print

Hint:

Class Customer

{

//Personal Details ...

// Few functions ...

}

Class Account

{

// Account Detail ...

// Few functions ...

}

Class RBI

{

Customer c; //hasA relationship

Account a; //hasA relationship

..

Public double GetInterestRate() { }

Public double GetWithdrawalLimit() { }

}

Class SBI: public RBI

{

//Use RBI functionality or define own functionality.

}

Class ICICI: public RBI

{

//Use RBI functionality or define own functionality.

}

PROGRAM:

import java.util.Scanner;

import java.io.File;

import java.io.FileNotFoundException;

import java.io.PrintWriter;

import java.util.Random;

class Customer

{

private int accno;

private String name;

private String acc_type;

private long balance;

private String dob;

Scanner sc = new Scanner(System.in);

//method to open new account

public void openAccount()

{

System.out.print("\nEnter your name: ");

name = sc.next();

System.out.print("Enter your Account type: ");

acc_type = sc.next();

System.out.print("Enter your date of birth: ");

dob = sc.next();

//create account number

Random rand = new Random();

accno = rand.nextInt(10000);

System.out.print("Account has been opened successfully!!"+"\n Your account number is:"+accno);

Account A= new Account();

A.showAccount();

int choi;

System.out.println("1. Saving Account \n 2. Current Account\n 3.Exit ");

System.out.println("Enter your choice: ");

choi = sc.nextInt();

switch (choi) {

case 1:

System.out.print("\n Account type is:"+acc_type+"\n");

RBI SI= new RBI();

SI.simpleinterest();

case 2:

System.out.print("\n Account type is:"+acc_type+"\n");

RBI CI= new RBI();

CI.compoundinterest();

case 3:

break;

}

}

class Account{

//method to display account details

public void showAccount() {

System.out.println("\nAccount Details");

System.out.println("\nName of account holder: " + name);

System.out.println("Account no.: " + accno);

System.out.println("Account type: " + acc_type);

System.out.println("Date of Birth: " + dob);

System.out.println("Balance: " + balance);

}

}

class RBI{ // Base class

int withLimit;

public void simpleinterest() {

double P, r, t, s_interest,A,totint,minbal;

Scanner scanner = new Scanner(System.in);

System.out.println("Enter the value of Principal:");

P = scanner.nextDouble();

r=5;

System. out. print("Enter the Time (years):");

t = scanner.nextDouble();

s_interest = (P * r * t)/100;

System.out.println("Simple Interest: "+s_interest);

A = P * (1+(r * t));

System.out.println("Total Amount on Simple Interest: "+A);

totint=A-P;

System.out.println("Total Interest: "+totint);

minbal=2000;

System.out.println("Minimum Balance: "+minbal);

SBI sbi = new SBI();

int sbiWL= sbi.setWithdrawalLimit();

System.out.println("SBI withdraw limit is:"+sbiWL);

ICICI icici = new ICICI();

int iciciWL= icici.setWithdrawalLimit();

System.out.println("ICICI withdraw limit is:"+iciciWL);

PNB pnb = new PNB();

int pnbWL= pnb.setWithdrawalLimit();

System.out.println("PNB withdraw limit is:"+pnbWL);

File file = new File("E:\\Skilllync\\Introduction to JAVA\\Challenge-10\\CHALLENGE-10\\simpleinterest.txt");

PrintWriter printWriter = null;

try

{

printWriter = new PrintWriter(file);

printWriter.println("Simple Interest: "+s_interest);

}

catch (FileNotFoundException e)

{

e.printStackTrace();

}

finally

{

if ( printWriter != null )

{

printWriter.close();

}

}

}

public void compoundinterest() {

double A,P, r,nc,t,c_interest,totintst,minibal;

Scanner scanner = new Scanner(System.in);

System.out.print("Enter the value of Principal:");

P = scanner.nextDouble();

//System. out. print("Enter the Annual Rate of Interest:");

//r = scanner.nextDouble();

r=8;

nc=2;

System. out. print("Enter the Time (years):");

t = scanner.nextDouble();

c_interest = P * Math.pow(1.0+r/100.0,t) - P;

System.out. println("Compound Interest: "+c_interest);

A = P * (1+(r * nc))*(nc*t);

System.out.println("Total Amount on Compound Interest: "+A);

minibal=5000;

System.out.println("Minimum Balance: "+minibal);

File file = new File("E:\\Skilllync\\Introduction to JAVA\\Challenge-10\\ CHALLENGE-10\\compoundinterest.txt");

PrintWriter printWriter = null;

try

{

printWriter = new PrintWriter(file);

printWriter.println("Compound Interest: "+c_interest);

}

catch (FileNotFoundException e)

{

e.printStackTrace();

}

finally

{

if ( printWriter != null )

{

printWriter.close();

}

}

}

}

class SBI extends RBI{ // derived class1

int setWithdrawalLimit() {

withLimit=10000;

return withLimit;

}

}

class ICICI extends RBI{ // derived class2

int setWithdrawalLimit() {

withLimit=15000;

return withLimit;

}

}

class PNB extends RBI{ // derived class1

int setWithdrawalLimit() {

withLimit=20000;

return withLimit;

}

}

}

public class BankingApp {

public static void main(String args[]) {

Scanner sc = new Scanner(System.in);

int choice;

do {

Scanner sc1 = new Scanner(System.in);

System.out.print("Do you want to open an account?(Y/N)");

choice = sc1.next().charAt(0);

//Select Bank

System.out.print("In which bank, do you want to open an account:");

int ch1;

System.out.println("1. SBI Bank \n 2. ICICI Bank\n 3. PNB Bank \n 4.Exit ");

System.out.println("Enter your choice: ");

ch1 = sc.nextInt();

switch (ch1) {

case 1:

System.out.print("SBI Bank\n");

System.out.print("How many number of customers do you want to input? ");

//create customer

Scanner sc2 = new Scanner(System.in);

int n = sc2.nextInt();

Customer C[] = new Customer[n];

for (int i = 0; i < C.length; i++) {

C[i] = new Customer();

C[i].openAccount();

}

break;

case 2:

System.out.print("ICICI Bank\n");

System.out.print("How many number of customers do you want to input? ");

//create customer

Scanner sc3 = new Scanner(System.in);

int n1 = sc3.nextInt();

Customer C1[] = new Customer[n1];

for (int i = 0; i < C1.length; i++) {

C1[i] = new Customer();

C1[i].openAccount();

}

break;

case 3:

System.out.print("PNB Bank\n");

System.out.print("How many number of customers do you want to input? ");

//create customer

Scanner sc4 = new Scanner(System.in);

int n2 = sc4.nextInt();

Customer C2[] = new Customer[n2];

for (int i = 0; i < C2.length; i++) {

C2[i] = new Customer();

C2[i].openAccount();

}

break;

case 4:

break;

}

}

while(choice == 'Y'|| choice == 'y');

}

}

OUTPUT:

Do you want to open an account?(Y/N)Y

In which bank, do you want to open an account:1. SBI Bank

2. ICICI Bank
3. PNB Bank

4.Exit

Enter your choice:

1

SBI Bank

How many number of customers do you want to input? 1

Enter your name: PAUL

Enter your Account type: SAVING

Enter your date of birth: 12.02.2003

Account has been opened successfully!!

Your account number is:1344

Account Details

Name of account holder: PAUL

Account no.: 1344

Account type: SAVING

Date of Birth: 12.02.2003

Balance: 0

1. Saving Account
2. Current Account

3.Exit

Enter your choice:

1

Account type is:SAVING

Enter the value of Principal:

2000

Enter the Time (years):3

Simple Interest: 300.0

Total Amount on Simple Interest: 32000.0

Total Interest: 30000.0

Minimum Balance: 2000.0

SBI withdraw limit is:10000

ICICI withdraw limit is:15000

PNB withdraw limit is:20000