Notes

import java.util.Date;
import java.util.Random;
import java.util.Scanner;
public class Fun {
int Balance, c = 0, d = 0;
Date time = new Date();
Scanner sc = new Scanner(System.in);

void Menu() {
System.out.println(" Enter 1 for Addition ");
System.out.println(" Enter 2 for WithDraw ");
System.out.println(" Enter 3 to Register ");
System.out.println(" Enter 4 to Exit ");
int Modi = sc.nextInt();

switch (Modi) {
case 1:
Add();
Menu();
break;
case 2:
Withdraw();
Menu();
break;
case 3:
Register();
Menu();
break;
case 4:
System.out.println("********************** " + time + " ********************** ");
System.out.println("********************** Thanks for using Mu Bank **********************");
break;
default:
System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!ERROR!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
break;
}
}

private void Register() {
String strRegEx = "^(?=.*[0-9])(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%^&*])[a-zA-Z0-9!@#$%^&*](?=\S+$).{8,15}$";
Random Generate = new Random();
Balance = Generate.nextInt(5000);
System.out.println("***********************Enter Your ID and Password***********************");
System.out.println("*********** ID is 6 numbers only *********** ");
System.out.println("************* ID : ");

int ID = sc.nextInt();
if (ID <= 999999 && ID > 99999)
System.out.println("************* PassWord : ");
else {
System.out.println("*********** ID is 6 numbers only *********** ");
Register();
}

System.out.println("minimum 8 characters in length and no space and any number and upper case and lower case letters");
String PassWord = sc.next();
if (PassWord.matches(strRegEx))
System.out.println("********* The Password is valid *********");
else {
System.out.println("********* The Password is not valid *********");
System.out.println("min 8 and 15 max characters in length and no space and any number and upper case and lower case letters");
Register();
}
System.out.println("******************* You Have " + Balance + " $ in your ACC******************* ");
}

private void Add() {

if (c == 0)
Register();
System.out.println("*****************You can only Add 10 , 50, 100 , 200 Papers***************** ");
int Addition = sc.nextInt();
if (Addition % 10 == 0 && Addition > 0) {
System.out.println("******************* You Added " + Addition + " L.E *********************");
System.out.println("******************* Your Balance now = " + (Balance + Addition) + "******************* ");
Balance = Addition + Balance;
System.out.println("Enter 1 for another Addtion and 0 to end the Process");
int Operator = sc.nextInt();
if (Operator == 1) {
c = 1;

Add();
}
} else {
System.out.println("!!!!!!!!!!!!!!!!!WRONG PAPER!!!!!!!!!!!!!!!!");
System.out.println("Enter 1 for another Addtion and 0 to end the Process");
int Operator = sc.nextInt();
if (Operator == 1) {
c = 1;
Add();
}
}
}

private void Withdraw() {
if (c== 0)
Register();
System.out.println("********************** Your Balance = " + Balance + " $ **********************");
System.out.println("********************** Enter the amount you want to withdraw : ");
int WithDraw = sc.nextInt();
if (WithDraw > 0 && WithDraw <= Balance && WithDraw % 50 == 0) {
System.out.println(" ******************* Now Your Balnace is " + (Balance - WithDraw) + " $ *******************");
if (Balance == 0) {
System.out.println(" ******************** YOU HAVE NO MONEY BRO ********************");
return;
}
Balance = Balance - WithDraw;
System.out.println(" Enter 1 for another WithDraw and 0 to end the Process ");
int Operator = sc.nextInt();
if (Operator == 1) {
c = 1;
Withdraw();
} else if (Operator == 0) {
System.out.println("********************** Your Balance = " + Balance + " $ **********************");
}
} else if (WithDraw % 50 != 0) {
System.out.println("*****************You can only WithDraw 50, 100 , 200 Papers***************** ");
System.out.println(" Enter 1 for another WithDraw and 0 to end the Process ");
int Operator = sc.nextInt();
if (Operator == 1) {
c = 1;
Withdraw();
} else if (Operator == 0) {
System.out.println("********************** Your Balance = " + Balance + " $ **********************");
}
} else {
System.out.println("************************* You cant WithDraw this amount ************************* ");
System.out.println(" Enter 1 for another WithDraw and 0 to end the Process ");
int Operator = sc.nextInt();
if (Operator == 1) {
c= 1;
Withdraw();
} else if (Operator == 0) {
System.out.println("********************** Your Balance = " + Balance + " $ ********************");

}
}
}
}