Create a graphics program to draw moving stars and other type of shapes.

Ask user to input how many objects do you want to create?

draw (how many / 2) stars

draw (how many / 2) other shapes

apply collision detection to all the stars and shapes (right-left-top-bottom)

You must use only one ArrayList to save the shapes info.

You must use random class to set initial values of each shape (x, y, size, speedx, speedy, color, etc)

Use code here:

import java.awt.Color; import java.awt.Graphics; import javax.swing.JFrame; import java.util.*; import java.awt.*; import java.awt.event.*; import javax.swing.*; class Star { int x; int y; int size; int speedX; int speedY; Color color; } public class cs210Star extends JFrame { public static ArrayList myStar = new ArrayList<>(); static int width = 800; static int height = 600; static int howMany = 30; public cs210Star() { // Constructor (Ch08) super("Your Title"); setBounds(100, 100, width, height); // at your monitor setResizable(false); setVisible(true); setDefaultCloseOperation(EXIT_ON_CLOSE); } public static void createStar() { Random rand = new Random(); int R, G, B; for (int i = 0; i < howMany; i++) { Star s = new Star(); R = rand.nextInt(256); G = rand.nextInt(256); B = rand.nextInt(256); s.color = new Color(R, G, B); s.x = rand.nextInt(width); s.y = rand.nextInt(height); s.size = rand.nextInt(10) + 10; s.speedX = rand.nextInt(5) + 1; s.speedY = rand.nextInt(5) + 1; myStar.add(s); } } public void paint(Graphics g) { g.setColor(Color.BLACK); g.fillRect(0, 0, width, height); for (int i = 0; i < myStar.size(); i++) { // AllayList Size g.setColor(myStar.get(i).color); myStar.get(i).x += myStar.get(i).speedX; myStar.get(i).y += myStar.get(i).speedY; drawStar(g, myStar.get(i).x, myStar.get(i).y, myStar.get(i).size); } try { Thread.sleep(10); } catch (Exception exc) { } repaint(); } public void drawStar(Graphics g, int sx, int sy, int size) { int[] xCoords = new int[10]; int[] yCoords = new int[10]; int ang = 90 - 36; double rad; double PI = 3.14159; for(int i = 0; i < 10; i++) { if (i % 2 == 0) rad = size * 0.38; else rad = size; xCoords[i] += (int)(rad * Math.cos(PI * ang / 180.0)); yCoords[i] -= (int)(rad * Math.sin(PI * ang / 180.0)); ang += 36; xCoords[i] += getX(); yCoords[i] += getY(); } g.fillPolygon(xCoords, yCoords, 10); } public static void main(String[] args) { createStar(); new cs210Star(); } }