using System;

​

public class Program

{

    public static void Main()

    {

        //Instructions: Replace the "______" by actual code and write answers as needed in the commented out blocks

        //1. Nested Loops

        Console.WriteLine("How many rows?");

        int rows = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("How many columns?");

        int columns = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("What symbol do you want to use?");

        string symbol = Console.ReadLine();

        for (int i = 0; i < rows;i++)

        {

            for (int j = 0; j < columns; j++)

            {

                Console.Write(symbol);  

            }

            Console.WriteLine();

        }

        //2. Bubble Sort

        // "light floats to the top, heavy sinks to the bottom"

        int[] array = { 9, 1, 8, 2, 7, 3, 6, 4, 5 };

        for (int i = 0; i < array.Length; i++)

        {

            for (int j = 0; j < array.Length; j++)

            {

                if (array[j] > array[j + 1])

                {

                    int temp = array[j];

                    array[j] = array[j+1];

                    array[j+1] = temp;

                }

            }

        }

        //3. Multi-dimensional Arrays

        /*When is it a good idea to implement a multi-dimensional array?

            Answer: [A multi-dimensional array is useful when you need to representative data that is naturally organized in rows and columns like tables.]

        */

        //4. loops & arrays

        /*How can you loop through an array using a for loop? How can you loop through an array using a foreach loop?

        Answers:

            for loop: [you use a for loop by starting a index, an ending index, and increment expression.]

            foreach loop: [without needing an index.]

        */

        //5. Create an array with the values "Mazda", "Ferrari", "Ford"

        //      Then create a for loop that successfully loops through the array and outputs each value

        string[] cars = {"Mazda", "Ferrari", "Ford"};

        for (int i = 0; i < cars.Length; i++)

        {

            Console.WriteLine(cars[i]); 

        }

        //6. Create a foreach loop that successfully loops through the array and outputs each value

        foreach (string car in cars)

        {

            Console.WriteLine(car);

        }

        /*7. How do you access the first item in a multi-dimensional array?

        Answer: [You can access it by using the indices for the specific dimensions.]

        */

        /*8. What is a Method?

        Answer: [A block of code which only runs when it is called]

        */

        /*9. Why do we use Methods?

        Answer: [Methods allow us to organize code into reusable blocks,]

        */

        /*10. How do you call a Method, be descriptive in your explanation?

        Answer: [To call a method you use the method's name followed by parentheses which may contain arguments if the method requires them.]

        */

        //11. Correctly finish the method "MyMethod" that is at the bottom of this file so that the following code runs without any issues

        char x = MyMethod("X", "Y", "Z", 34);

        /*12. What does the key word "public" mean in the definition (signature) of a Method?

        Answer: ["public" means that the method is accessible from outside the class or program.]

        */

        /*13. What does the key word "void" mean in the definition (signature) of a Method?

        Answer: ["void" means that the method does not return any value.]

        */

        /*14. What is a parameter in a Method?

        Answer: [A parameter is a variable that is declared in the method signature and receives a value when the method is called.]

        */

        /*15. Why do we need a "return" key word sometimes in our methods, when do we not need it?

        Answer: [The "return" keyword is used when a method needs to send a value back to the caller.]

        */

        /*16. Explain what "overloading" a method means

        Answer: [Method overloading refers to defining multiple methods with the same name but different parameters number, type, or both.]

        */

        // 17. Overload the method "MyMethod" with another version of it underneath it

    }

    //Answer for question 11.

    public static char MyMethod(string x, string y, string z, int a)

    {

        Console.WriteLine(x + y + z + a);

        return 'A';

    }

    public static int MyMethod(string x, string y)

    {

        return 'A';

    }

}