DiceRollProgram.java

import java.util.Random;
import java.util.Scanner;

public class DiceRollProgram {

    static Scanner scanner = new Scanner(System.in);
    static Random random = new Random();

    public static void main(String[] args) {

        // JAVA DICE ROLLER PROGRAM

        // 1. Declare variables
        int numberOfDice;
        int total = 0;

        // 2. Get user input (ask how many dice they want to roll)
        do {
            System.out.print("Enter the number of dice to roll: ");
            numberOfDice = scanner.nextInt();
            scanner.nextLine(); // Clear the buffer
            if (numberOfDice > 6) {
                System.out.println("INVALID NUMBER! Please enter a number between 1 and 6.");
            }
            else if (numberOfDice < 0) {
                System.out.println("INVALID! Please enter a positive number (1-6).");
            }
        } while (numberOfDice > 6 || numberOfDice < 0);

        // If you chose a number between 1 and 6, the dice program will continue
        if (numberOfDice > 0 && numberOfDice <= 6) {

            for (int i = 0; i < numberOfDice; i++) {
                int roll = random.nextInt(1, 7); // Rolling a six-sided die
                printDie(roll);     // Display each die rolled

                System.out.println("You rolled " + roll); // Display the number rolled
                total += roll; // To calculate total, add each number you rolled
            }
            // Output the total
            System.out.println();
            System.out.println("***********************");
            System.out.println("Your Total: " + total);
            System.out.println("***********************");

        }
        scanner.close();
    }
    // 3. Display the dice - Here we will a method
    static void printDie(int roll) {
        // Display each die you roll
        String dice1 = """
                 -------
                |       |
                |   ●   |
                |       |
                 -------
                """;
        String dice2 = """
                 -------
                | ●     |
                |       |
                |     ● |
                 -------
                """;
        String dice3 = """
                 -------
                | ●     |
                |   ●   |
                |     ● |
                 -------
                """;
        String dice4 = """
                 -------
                | ●   ● |
                |       |
                | ●   ● |
                 -------
                """;
        String dice5 = """
                 -------
                | ●   ● |
                |   ●   |
                | ●   ● |
                 -------
                """;
        String dice6 = """
                 -------
                | ●   ● |
                | ●   ● |
                | ●   ● |
                 -------
                """;
        // Whatever roll is, display the appropriate die
        switch(roll) {
            case 1 -> System.out.print(dice1);
            case 2 -> System.out.print(dice2);
            case 3 -> System.out.print(dice3);
            case 4 -> System.out.print(dice4);
            case 5 -> System.out.print(dice5);
            case 6 -> System.out.print(dice6);
            default -> System.out.print("INVALID ROLL");
        }
    }
}