import java.util.Scanner;

public class HacksDemo {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        // ==========================
        // 🍿 Popcorn Hack 1
        // ==========================
        System.out.println("=== Popcorn Hack 1 ===");
        System.out.print("System.out.print keeps text on same line. ");
        System.out.println("System.out.println moves to a new line.");
        System.out.printf("System.out.printf formats numbers: Pi = %.2f\n", Math.PI);
        System.out.println("Escape sequences: \"Quotes\", backslash \\\\, new line\nNew line works!");
        System.out.println("String concatenation: " + "Hello " + "World!");
        System.out.println("Arithmetic expressions: 7 % 3 = " + (7 % 3));

        // Example line using many tools
        System.out.printf("Hello\tWorld!\nPi = %.2f and 5/2 = %d\n\n", Math.PI, (5/2));


        // ==========================
        // 🍿 Popcorn Hack 2
        // ==========================
        System.out.println("=== Popcorn Hack 2 ===");
        System.out.println("==== Main Menu ====");
        System.out.println("1. Start Game");
        System.out.println("2. Instructions");
        System.out.println("3. Exit");
        System.out.print("Choose an option: ");
        int choice = sc.nextInt();
        int optionCount = 3;
        System.out.println("You selected option: " + choice);
        System.out.println("There are " + optionCount + " total options.\n");


        // ==========================
        // 🏠 Homework Hack 1
        // ==========================
        System.out.println("=== Homework Hack 1 ===");

        // Predict Output
        System.out.print("AP ");
        System.out.println("CSA");
        System.out.println("Rocks!");

        // Fix the bug (Windows path with escaped backslashes)
        System.out.println("C:\\Users\\Student");

        // Add 4th option (Settings) to Menu
        System.out.println("==== Updated Menu ====");
        System.out.println("1. Start Game");
        System.out.println("2. Instructions");
        System.out.println("3. Exit");
        System.out.println("4. Settings");
        optionCount = 4;
        System.out.println("There are " + optionCount + " total options.\n");

        // Print Pi with 2 decimals
        System.out.printf("Pi = %.2f\n\n", Math.PI);


        // ==========================
        // 🏠 Homework Hack 2
        // ==========================
        System.out.println("=== Homework Hack 2 ===");
        System.out.println("==== Calculator Menu ====");
        System.out.println("1. Add");
        System.out.println("2. Subtract");
        System.out.println("3. Multiply");
        System.out.println("4. Divide");

        System.out.print("Choose an option: ");
        int calcChoice = sc.nextInt();

        System.out.print("Enter first number: ");
        double num1 = sc.nextDouble();

        System.out.print("Enter second number: ");
        double num2 = sc.nextDouble();

        double result = 0;
        if (calcChoice == 1) result = num1 + num2;
        else if (calcChoice == 2) result = num1 - num2;
        else if (calcChoice == 3) result = num1 * num2;
        else if (calcChoice == 4) result = num1 / num2;

        // Print result with 2 decimals
        System.out.printf("Result = %.2f\n", result);

        sc.close();
    }
}

HacksDemo.main(null);


=== Popcorn Hack 1 ===
System.out.print keeps text on same line. System.out.println moves to a new line.
System.out.printf formats numbers: Pi = 3.14
Escape sequences: "Quotes", backslash \\, new line
New line works!
String concatenation: Hello World!
Arithmetic expressions: 7 % 3 = 1
Hello	World!
Pi = 3.14 and 5/2 = 2

=== Popcorn Hack 2 ===
==== Main Menu ====
1. Start Game
2. Instructions
3. Exit
Choose an option: You selected option: 1
There are 3 total options.

=== Homework Hack 1 ===
AP CSA
Rocks!
C:\Users\Student
==== Updated Menu ====
1. Start Game
2. Instructions
3. Exit
4. Settings
There are 4 total options.

Pi = 3.14

=== Homework Hack 2 ===
==== Calculator Menu ====
1. Add
2. Subtract
3. Multiply
4. Divide
Choose an option: Enter first number: Enter second number: Result = 0.67