program2

/*
 * Program #2
 * Put your name here
 */
package Program2;

import java.awt.Graphics;
import java.util.Random;
import javax.swing.JFrame;
import static javax.swing.JFrame.EXIT_ON_CLOSE;

public class Program2 extends JFrame {

    // Constant that stores the height/width of the frame:
    private static final int FRAME_SIZE = 700;
    // Constants that store the top, bottom, left, and right edges of the square
    private static final int SQUARE_TOP = 60;
    private static final int SQUARE_LEFT = 60;
    private static final int SQUARE_RIGHT = 600;
    private static final int SQUARE_BOTTOM = 600;
    // Constant that stores the spacing (in pixels) between the tunnel lines
    private static final int SPACING = 20;
    // Variables that store the row and column of the end point of the tunnel.
    private static int row, column;
    // Random object used to generate random values for row and column
    private static Random rand = new Random();

    // The main() method sets up the JFrame object (guiWindow)
    // and calls the loop() method.
    public static void main(String[] args) {
        Program2 guiWindow = new Program2();
        guiWindow.setSize(FRAME_SIZE, FRAME_SIZE);
        guiWindow.setDefaultCloseOperation(EXIT_ON_CLOSE);
        guiWindow.setVisible(true);
        loop(guiWindow);
    }

    // The loop() method repeatedly generates new values for row and column
    // It then pauses for 2 seconds and tells the frame to re-draw itself.
    public static void loop(Program2 guiWindow) {
        while (true) {
            column = rand.nextInt(SQUARE_RIGHT - SQUARE_LEFT) + SQUARE_LEFT;
            row = rand.nextInt(SQUARE_BOTTOM - SQUARE_TOP) + SQUARE_TOP;
            Wait.manySec(2); // pauses the program for 2 seconds.
            guiWindow.repaint(); // asks guiWindow to re-draw itself.
        }
    }

    @Override
    public void paint(Graphics g) {
        super.paint(g);
        Graphics canvas = getContentPane().getGraphics();

        // Right here you must enter the code that draws the square
        // and the lines from the point (row, column) to the edge of the
        // square so that it looks like a tunnel.

    }
}