1 /* 2 * Program that paints 100 red, yellow and orange balloons in a blue sky. 3 * It will feature commands. 4 */ 5 package npw; 6 import java.awt.Color; 7 import java.util.Random; 8 import javax.swing.SwingUtilities; 9 import painter.SPainter; 10 import shapes.SCircle; 11 import shapes.SSquare; 12 public class Balloons { 13 // REQUIRED INFRASTRUCTURE 14 public Balloons() { 15 paintTheImage(); 16 } 17 public static void main(String[] args) { 18 SwingUtilities.invokeLater(new Runnable() { 19 public void run() {new Balloons(); 20 } 21 }); 22 } 23 // THE PAINTER DOING ITS THING 24 private void paintTheImage() { 25 SPainter painter = new SPainter("Balloons", 600, 600); 26 paintSky(painter); // ask IntelliJ to generate the stub 27 int nrOfBalloons = 100; 28 paintBalloons(painter,nrOfBalloons); // ask IntelliJ to generate the stub 29 } 30 private void paintSky(SPainter painter) { 31 painter.setColor(Color.BLUE); 32 SSquare sky = new SSquare(2000); 33 painter.paint(sky); 34 } 35 private void paintBalloons(SPainter painter, int nrOfBalloons) { 36 int i = 1; 37 while ( i <= nrOfBalloons ) { 38 paintOneBalloon(painter); // ask IntelliJ to generate the stub 39 i = i + 1; 40 } 41 } 42 private void paintOneBalloon(SPainter painter) { 43 Random rgen = new Random(); 44 int rn = rgen.nextInt(3); 45 if ( rn == 0 ) { 46 painter.setColor(Color.RED); 47 } else if ( rn == 1 ) { 48 painter.setColor(Color.ORANGE); 49 } else { 50 painter.setColor(Color.YELLOW); 51 } 52 painter.move(); 53 int balloonRadius = 20; 54 SCircle balloon = new SCircle(balloonRadius); 55 painter.paint(balloon); 56 painter.setColor(Color.BLACK); 57 painter.draw(balloon); 58 } 59 } 60