import java.awt.*;
import hsa.Console;

public class MatrixCode
{
    static Console c;

    public static void main (String[] args)
    {
        c = new Console ();

        while (true)
        {
            c.setColor (Color.black);
            c.fillRect (0, 0, c.maxx (), c.maxy ());

            c.setColor (Color.green);
            c.setFont (new Font ("monospaced", Font.BOLD, 20));

            int x, y;
            x = (int) (Math.random () * c.maxx ());
            y = 0;

            for (int i = 0 ; i < c.maxy () ; i++)
            {
                y = i;
                c.drawString ("M", x, y);
            }
        }


    }
}

        int first = 4;
        int second = 6;
        int third = 10;

        c.println ("Values: " + (first) + ", " + (second) + ", " + (third));

        int added = 0;

        while (added == 0)
        {
            first += 1;
            second += 1;
            third += 1;
            added += 1;
        }

        c.println ("New Values: " + (first) + ", " + (second) + ", " + (third));

        int[] arr = {4, 6, 10};

        c.print ("Array Values: ");

        for (int i = 0 ; i < arr.length ; i++)
        {
            if (i == arr.length - 1)
            {
                c.println (arr [i]);
            }

            else
            {
                c.print (arr [i] + ", ");
            }
        }

        for (int i = 0 ; i < arr.length ; i++)
        {
            arr [i]++;
        }

        c.println ("New Array Values: " + (first) + ", " + (second) + ", " + (third));

        //Create a font object and set the font and color of the characters
        //in the falling Matrix code
        c.setColor (Color.green);
        c.setFont (new Font ("monospaced", Font.BOLD, 20));

        //Create an array for the x-coordinates of the characters across the
        //top of the screen
        int[] xchars = new int [100];

        //Create an array for the y-coordinates of the characters going
        //down the console screen
        int[] ychars = new int [100];

        //Create an array to store a list of numbers representing characters in
        //the string that stores all of chracters that will be displayed
        int[] nchars = new int [100];

        //Create a list of characters used in Matrix by storing them in a string
        //Individual characters can be accessed by using the subString () method
        String str1 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890!@#$%^&*()-+][{}\\|'\";:/?.>,<";

        //Assign different x, y, and character values to the arrays created with the
        //specified length
        for (int i = 0 ; i < 100 ; i++)
        {
            nchars [i] = (int) (Math.random () * str1.length ());
            xchars [i] = (int) (Math.random () * c.maxx ());
            ychars [i] = (int) (Math.random () * c.maxy ());
        }

        //Use an infinite while loop to display the characters on the screen
        //and change the required character's location
        while (true)
        {

            c.setColor (Color.black);
            c.fillRect (0, 0, c.maxx (), c.maxy ());

            for (int i = 0 ; i < 100 ; i++)
            {
                ychars [i] += 20;

                if (ychars [i] >= c.maxy ())
                {
                    nchars [i] = (int) (Math.random () * str1.length ());
                    xchars [i] = (int) (Math.random () * c.maxx ());
                    ychars [i] = 0;
                }
               
                c.setColor(Color.green);

                String str2 = str1.substring (nchars [i]);

                for (int j = 0 ; j < 1 ; j++)
                {
                    c.drawString (str2, xchars [i], ychars [i]);
                }
            }

            Thread.sleep (50);
        }