updateboiz

Main

public static void main(String[] args) throws IOException{
        Scanner sc = new Scanner(System.in);
        Bank_Transact bt = new Bank_Transact();
        bt.storeInfo();
        bt.enterPin();
        bt.menu();
    }

Bank_Transact

public void menu() throws IOException{
        System.out.println("Welcome to Power Bank");
        System.out.println("[B] Balance Inquiry");
        System.out.println("[W] Withdraw");
        System.out.println("[D] Deposit");
        System.out.println("[X] Exit");
        char choice = sc.next().charAt(0);
        options(choice, infoPin);
    }
public void options(char c, String p) throws IOException{
        FileWriter f2 = new FileWriter("C:\\Users\\DELL\\Desktop\\CUST.txt");
        char ans;
        switch(c){
            case 'b':
            case 'B':
                inf.forEach(in -> {
                    if(p.equals(in.getPin()))
                        System.out.println("The current is PHP " + df.format(Double.parseDouble(in.getDeposit())));
                });
                System.out.print("Do you want to do another transaction[y/n]? ");
                ans = sc.next().charAt(0);
                if(ans == 'y' || ans == 'Y'){
                    menu();
                }
                else
                    System.exit(0);
                break;
            case 'w':
            case 'W':
                inf.forEach(in -> {
                    if(p.equals(in.getPin())){
                        System.out.print("Enter the amount to be withdrawn: ");
                        int withdraw = sc.nextInt();
                        double tempW = Double.valueOf(in.getDeposit()) - withdraw;
                        in.setDeposit(Double.toString(tempW));
                    }
                });
                System.out.print("Do you want to do another transaction[y/n]? ");
                ans = sc.next().charAt(0);
                if(ans == 'y' || ans == 'Y'){
                    menu();
                }
                else
                    System.exit(0);
                break;
            case 'd':
            case 'D':
                inf.forEach(in -> {
                    if(p.equals(in.getPin())){
                        System.out.println("This machine accepts bills only.");
                        System.out.print("Enter deposit amount: ");
                        double dep = sc.nextDouble();
                        double tempB = Double.parseDouble(in.getDeposit()) + dep;
                        in.setDeposit(Double.toString(tempB));
                    }
                });
                System.out.print("Do you want to do another transaction[y/n]? ");
                ans = sc.next().charAt(0);
                if(ans == 'y' || ans == 'Y'){
                    menu();
                }
                else
                    System.exit(0);
                break;
            case 'x':
            case 'X':
                for(InfoClass in : inf) {
                    System.out.println(in.getPin() + "\t" + in.getName() + "\t" + df.format(Double.parseDouble(in.getDeposit())));
                    f2.write(in.getPin());
                    f2.write(System.getProperty( "line.separator" ));
                    f2.write(in.getName());
                    f2.write(System.getProperty( "line.separator" ));
                    f2.write(in.getDeposit());
                    f2.write(System.getProperty( "line.separator" ));
                }
                f2.close();
        }
    }

InfoClass

protected String pin;
    protected String name;
    protected String deposit;
    public InfoClass(){
        pin = "";
        name = "";
        deposit = "";
    }
    public InfoClass(String pin, String name, String deposit){
        this.pin = pin;
        this.name = name;
        this.deposit = deposit;
    }
    public String getPin(){
        return pin;
    }
    public void setPin(String pin){
        this.pin = pin;
    }
    public String getName(){
        return name;
    }
    public void setName(String name){
        this.name = name;
    }
    public String getDeposit(){
        return deposit;
    }
    public void setDeposit(String deposit){
        this.deposit = deposit;
    }