ATM program Java

 In Java, we can create an ATM program for representing ATM transection. In the ATM program, the user has to select an option from the options displayed on the screen. The options are related to withdraw the money, deposit the money, check the balance, and exit.

To withdraw the money, we simply get the withdrawal amount from the user and remove that amount from the total balance and print the successful message.

To deposit the money, we simply get the deposit amount from the user, add it to the total balance and print the successful message.

To check balance, we simply print the total balance of the user.

We use the exit(0) method to exit from the current Transaction mode and return the user to the home page or initial screen.

ATMExample.java

1. //import required classes and packages   
2. import java.util.Scanner;  
3.   
4. //create ATMExample class to implement the ATM functionality  
5. public class ATMExample  
6. {  
7.     //main method starts   
8.     public static void main(String args[] )  
9.     {  
10.         //declare and initialize balance, withdraw, and deposit  
11.         int balance = 100000, withdraw, deposit;  
12.           
13.         //create scanner class object to get choice of user  
14.         Scanner sc = new Scanner(System.in);  
15.           
16.         while(true)  
17.         {  
18.             System.out.println("Automated Teller Machine");  
19.             System.out.println("Choose 1 for Withdraw");  
20.             System.out.println("Choose 2 for Deposit");  
21.             System.out.println("Choose 3 for Check Balance");  
22.             System.out.println("Choose 4 for EXIT");  
23.             System.out.print("Choose the operation you want to perform:");  
24.               
25.             //get choice from user  
26.             int choice = sc.nextInt();  
27.             switch(choice)  
28.             {  
29.                 case 1:  
30.         System.out.print("Enter money to be withdrawn:");  
31.                       
32.         //get the withdrawl money from user  
33.         withdraw = sc.nextInt();  
34.                       
35.         //check whether the balance is greater than or equal to the withdrawal amount  
36.         if(balance >= withdraw)  
37.         {  
38.             //remove the withdrawl amount from the total balance  
39.             balance = balance - withdraw;  
40.             System.out.println("Please collect your money");  
41.         }  
42.         else  
43.         {  
44.             //show custom error message   
45.             System.out.println("Insufficient Balance");  
46.         }  
47.         System.out.println("");  
48.         break;  
49.    
50.                 case 2:  
51.                       
52.         System.out.print("Enter money to be deposited:");  
53.                       
54.         //get deposite amount from te user  
55.         deposit = sc.nextInt();  
56.                       
57.         //add the deposit amount to the total balanace  
58.         balance = balance + deposit;  
59.         System.out.println("Your Money has been successfully depsited");  
60.         System.out.println("");  
61.         break;  
62.    
63.                 case 3:  
64.         //displaying the total balance of the user  
65.         System.out.println("Balance : "+balance);  
66.         System.out.println("");  
67.         break;  
68.    
69.                 case 4:  
70.         //exit from the menu  
71.         System.exit(0);  
72.             }  
73.         }  
74.     }  
75. }  

Output: