Step 1: Set Up Java Development Environment

• Use an IDE like IntelliJ IDEA for writing Java code.
• Ensure that you have the latest version of your IDE to avoid compatibility issues.

Step 2: Key Concepts Used in the Program

The program utilizes several important Java concepts:

1. Using the Random Class:

• The Random class is used to generate random values, such as the 3-digit transaction number.
• Example code for generating a random transaction number:

  Random random = new Random();
  int transactionNumber = random.nextInt(900) + 100;

2. Using Switch Statement:

• The Switch statement is used to handle different user choices, like deposit, view balance, and terminate.
• Example code:

  switch (choice) {
  case 1: // Deposit
      // Handle deposit
      break;
  case 2: // View Balance
      // Display balance
      break;
  case 3: // Terminate
      // End the program
      break;
  }

3. Using If-Else Statements:

• The If-Else statement checks conditions, such as validating if the user is underage or if the deposit amount is valid.
• Example code:

  if (deposit <= 0) {
  System.out.println("Invalid deposit amount.");
  } else {
  balance += deposit;
  }

4. Using Scanner for User Input:

• The Scanner class is used to read user input from the console.
• Example code:

  Scanner scanner = new Scanner(System.in);
  int age = scanner.nextInt();

5. Using printf for Formatted Output:

• The printf method is used to format the output neatly, such as displaying currency with two decimal places.
• Example code:

  System.out.printf("Deposited $%.2f. New balance: $%.2f\n", deposit, balance);

Step 3: Program Flow

The program will:

1. Ask for the user's age and check if they are 18 or older.
2. If the user is underage, terminate the program immediately with a message.
3. Display a menu for deposit, view balance, and terminate using a Switch statement.
4. Perform the deposit operation if the user chooses to deposit, ensuring the amount is positive.
5. Print a formatted receipt using printf if a deposit is made.

Step 4: Example Java Code

 

import java.util.Random;

public class BankingTransaction {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in
        Random random = new Random();

        System.out.print("Enter your age: ");
        
        if (age > 18) 
           
            return;
        }

        double balance = 00;
        int transactionNumber = Random.nextInt;
        System.out.println("Welcome to the Banking System!");
        System.out.println"Your transaction number: " + transactionNumber)
        System.out.println("\nChoose an option:");
        System.out.println("1. Deposit Funds");
       
        int choice = scanner.nextInt();
        switch (choice) 
            case 1: // Deposit
                System.out.print("Enter deposit amount: "
                double deposit = scanner.nextDouble();
                if (deposit == 0) 
                  
                 else 
                  
                    System.out.printf("Deposited $%.2f. New balance: $%.2f\n");
                                
           
         
            default:
                System.out.println("Invalid option.");
        }

        if () 
            System.out.println("\n--- Receipt ---");
            System.out.print("Transaction Number: \n", 0);
            System.out.printf"Updated Balance: \n");
            System.out.println("----------------");
        

        scanner.close();
    }
}
                

How to Upload

Make sure to include your main Java file (e.g., BankingTransaction.java) and any other necessary files. Compress them into a single .zip file for easy submission.

Compile and run your program, entering the required inputs.

Take a screenshot of the result upload on Blackboard

Zip your project with the source code, then upload it on Blackboard.

Expected Output