ATM Management System & Palindromic Substring Finder

This project consists of two main components:

1. ATM Management System: A simple ATM simulation that allows users to check their account balance, deposit money, and withdraw funds.
2. Longest Palindromic Substring Finder: A program that finds the longest palindromic substring in a given input string.

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Components

1. ATM Management System

The ATM system allows users to perform the following operations:

• Check Balance: View the current balance of the account.
• Deposit Money: Add funds to the account.
• Withdraw Money: Withdraw funds from the account (if sufficient balance is available).

Classes:

• ATM: Manages accounts and facilitates ATM operations.
• Account: Represents a user’s account, storing account details like account number, account holder's name, and balance.

How to Run:

1. The program starts by creating a new ATM object and adding an account to it.
2. The user can interact with the ATM by choosing from a set of options (check balance, deposit, withdraw).
3. The ATM will prompt the user for the account number and perform the requested operation if the account exists.

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2. Longest Palindromic Substring Finder

This component finds the longest palindromic substring in a given string.

How it Works:

1. The user is prompted to input a string.
2. The program checks all possible substrings and identifies the longest palindrome.
3. It returns the longest palindromic substring found.

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How to Run

1. ATM Management System:

   • Run the Main class to simulate the ATM system. You will be prompted with an interface to perform ATM operations.

2. Longest Palindromic Substring Finder:

   • Run the JavaTest2 class. It will ask you to enter a string and output the longest palindromic substring.

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Requirements

• Java 8 or higher.
• No additional libraries required.

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