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Added a new java program on banking management system #60

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353 changes: 353 additions & 0 deletions Bank.java
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/*
** -------Problem question-----------**
A banking system provides two types of account services to its customers.
1. Saving Account: Using such service customer can deposit amount and can also withdraw amount but customer has to maintain minimum balance (such as 10000/-) after withdrawal. Customer also gets interest on his balance periodically.
2. Current Account: Such service is for the business purpose customers. Current account holder can withdraw beyond minimum balance (also known as overdraft) but penalty will be levied on overdraft. How much overdraft is allowed depends on the credit limit of a customer (Generally decided by the Bank itself). On such account bank does not give interest.
Write a banking management system.
*/




/**** Class Account ***/
import java.util.Scanner;
class Account
{
private int accno;
private double balance;
protected double minbalance;

public Account(int ac, double bal, double minbal)
{
accno= ac;
balance = bal;
minbalance = minbal;
}
protected int getAccno()
{
return accno;
}
protected double getBalance()
{
return balance;
}
protected void setBalance(double bal)
{
balance = bal;
}
protected double getMinBalance()
{
return minbalance;
}
protected void setMinBalance(int bal)
{
minbalance = bal;
}
}

class SavingAccount extends Account
{
private double interest;
static private double rate;
static int temp = 100;
public SavingAccount(double bal, double minbal)
{
//int accno;

super(generateAccountNumber(), bal,minbal);
interest =0;
rate = 4.5;
}
private static int generateAccountNumber()
{
return temp++;
}
static public double getRate()
{
return rate;
}
public void deposit(int amt)
{
setBalance(super.getBalance()+amt);
}
public void withdraw(int amt)
{
if(getBalance()-amt >= minbalance)
setBalance(getBalance()-amt);
else
{
System.out.println("Your Balance is less: "+getBalance());
}
}
public void showBalance()
{
System.out.println("Your Balance is: " + getBalance());
}
public int getAccno()
{
return super.getAccno();
}
public static void modifyRate(double irate)
{
rate = irate;
}
public void calInterest()
{
interest = getBalance()*this.getRate()/100;
setBalance(getBalance()+interest);
}
public void showDetails()
{

System.out.println("Account Type: Saving Account");
System.out.println("Account No:"+this.getAccno());
System.out.println("Balance: "+super.getBalance());
System.out.println("Min Balance: "+super.getMinBalance());
}

}
class CurrentAccount extends Account
{

private double overdraft;
private double penaltyrate;
private double creditlimit;
private double penalty;
static int temp = 1100;
public CurrentAccount(double bal, double minbal,double credit)
{
//int accno;

super(generateAccountNumber(), bal,minbal);
creditlimit = credit;
overdraft =0;
penaltyrate = 3.5;
penalty=0;
}
private static int generateAccountNumber()
{
return temp++;
}
public void deposit(int amt)
{

setBalance(super.getBalance()+amt);
if(getBalance() >=getMinBalance())
{
penalty = overdraft*penaltyrate;
setBalance(super.getBalance()-penalty);
overdraft =0;
}
else
overdraft = overdraft-amt+penalty;
}
public void withdraw(int amt)
{

if(getBalance()-getMinBalance()>=amt)
{
setBalance(getBalance()-amt);
penalty = 0;
}
else
if(amt<=creditlimit)
{
overdraft = getBalance()+getMinBalance()-amt;
setBalance(getBalance()-amt);
}
else
{
System.out.println("Your withdrawl request exceeded credit limit: "+getBalance());
System.out.println("Your credit limit: "+creditlimit);
}
}
public void showBalance()
{
System.out.println("Your Balance is: " + getBalance());
}
public int getAccno()
{
return super.getAccno();
}
public void showDetails()
{

System.out.println("Account Type: Current Account");
System.out.println("Account No: "+this.getAccno());
System.out.println("Balance: "+super.getBalance());
System.out.println("Min Balance: "+super.getMinBalance());
System.out.println("Credit Limit: "+this.creditlimit);
System.out.println("Overdraft: "+this.overdraft);
System.out.println("Penaltyrate: "+this.penaltyrate);
System.out.println("penalty : "+this.penalty);

}

}
/****** Class Bank ******/
public class Bank
{
public static int search(SavingAccount save[], int acno, int size)
{
int i;
for(i=0;i<size;i++)
if(save[i].getAccno() == acno)
return i;
return -1;
}
public static int search(CurrentAccount cur[], int acno, int size)
{
int i;
for(i=0;i<size;i++)
if(cur[i].getAccno() == acno)
return i;
return -1;
}


public static void main(String[] args)
{
Scanner scan = new Scanner(System.in);
SavingAccount save[] = new SavingAccount[10];
CurrentAccount cur[] = new CurrentAccount[5];
int i=0, j=0, pos,amt,accno;
char ch;
/* Perform Bank operations */
do
{
System.out.println("\nLNMIIT Banking System\n");
System.out.println("1. open new saving account");
System.out.println("2. open new current account");
System.out.println("3. deposit in saving account");
System.out.println("4. deposit in current account");
System.out.println("5. withdraw from saving account");
System.out.println("6. withdraw from current account");
System.out.println("7. Show Balance Saving Account");
System.out.println("8. Show Balance Current Account");
System.out.println("9. Show Details Saving Account");
System.out.println("10. Show Details Current Account");
System.out.println("11. Quit");

int choice = scan.nextInt();
switch (choice)
{
case 1 :
//System.out.println("Enter your details");
save[i] = new SavingAccount(5000,5000);
save[i].showDetails();
//save[i].getData(scan);
i++;
break;
case 2 :
System.out.println("Enter your details");
cur[j] = new CurrentAccount(10000,10000,50000);
cur[j].showDetails();
j++;
break;
case 3 :
System.out.println("Enter the account no");
accno = scan.nextInt() ;
pos = search(save,accno,i);
if(pos>=0)
{
System.out.println("Enter the amount to be deposited");
amt = scan.nextInt() ;
save[pos].deposit(amt);

}
else
System.out.println("Account does not exist");
break;


case 4 :
System.out.println("Enter the account no");
accno = scan.nextInt() ;
pos = search(cur,accno,j);
if(pos<0)
{
System.out.println("Account does not exist");
break;
}
System.out.println("Enter the amount to be deposited");
amt = scan.nextInt() ;
cur[pos].deposit(amt); break;
case 5 :
System.out.println("Enter the account no");
accno = scan.nextInt() ;
pos = search(save,accno,i);
if(pos>=0)
{

System.out.println("Enter the withdrawl amount ");
amt = scan.nextInt() ;
save[pos].withdraw(amt);
}
else
System.out.println("Account does not exist");

break;

case 6 :
System.out.println("Enter the account no");
accno = scan.nextInt() ;
pos = search(cur,accno,j);
if(pos<0)
{
System.out.println("Account does not exist");
break;
}
System.out.println("Enter the withdrawl amount ");
amt = scan.nextInt() ;
cur[pos].withdraw(amt); break;

case 7: System.out.println("Enter the account no");
accno = scan.nextInt() ;
pos = search(save,accno,i);
if(pos>=0)

save[pos].showBalance();
else
System.out.println("Account does not exist");
break;



case 8: System.out.println("Enter the account no");
accno = scan.nextInt() ;
pos = search(cur,accno,j);
if(pos<0)
{
System.out.println("Account does not exist");
break;
}
cur[pos].showBalance(); break;

case 9: System.out.println("Enter the account no");
accno = scan.nextInt() ;
pos = search(save,accno,i);
if(pos>=0)

save[pos].showDetails();
else
System.out.println("Account does not exist");
break;

case 10: System.out.println("Enter the account no");
accno = scan.nextInt() ;
pos = search(cur,accno,j);
if(pos>=0)
cur[pos].showDetails();
else
System.out.println("Account does not exist");
break;
case 11: System.out.println("Bank Software Closed");System.exit(1);
default : System.out.println("Wrong Entry \n ");

}

System.out.println("\nDo you want to continue (Type y or n) \n");
ch = scan.next().charAt(0); // will give the first character of entered string
} while (ch == 'Y'|| ch == 'y');
}
}