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82 lines (65 loc) · 2.23 KB
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package Bankig.v1_basic;
import java.util.Scanner;
public class Main {
static Scanner scanner = new Scanner(System.in);
public static void main(String[] args) {
// JAVA BANKING PROGRAM
double balance = 0;
boolean isRunning = true;
int choice;
while(isRunning){
System.out.println("--------------");
System.out.println("NATIONAL BANK");
System.out.println("--------------");
System.out.println("1. Show Balance");
System.out.println("2. Deposit");
System.out.println("3. Withdraw");
System.out.println("4. Exit");
System.out.println("--------------");
System.out.print("Choose any option (1-4): ");
choice = scanner.nextInt();
switch(choice){
case 1 -> showBalance(balance);
case 2 -> balance += deposit();
case 3 -> balance -= withdraw(balance);
case 4 -> isRunning = false;
default -> System.out.println("Invalid Choice!");
}
}
System.out.println("---------------------------");
System.out.println("Thank you! have a nice day!.");
scanner.close();
}
static void showBalance(double balance){
System.out.println("--------------");
System.out.printf("Total Balance: $%.2f\n" , balance);
}
static double deposit(){
double amount;
System.out.print("Enter an amount to be deposited: ");
amount = scanner.nextDouble();
if(amount <= 0){
System.out.println("Amount must be greater than zero.");
return 0;
}
else{
return amount;
}
}
static double withdraw(double balance){
double amount;
System.out.print("Enter an amount to be withdrawn: ");
amount = scanner.nextDouble();
if (amount <= 0){
System.out.println("Amount must be greater than zero.");
return 0;
}
else if(amount > balance){
System.out.println("Insufficient.");
return 0;
}
else{
return amount;
}
}
}