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  1. package demoflappybird;
  2.  
  3. import java.awt.Color;
  4. import java.awt.Graphics;
  5. import java.awt.image.BufferedImage;
  6. import java.io.File;
  7. import java.io.IOException;
  8. import java.util.Random;
  9. import java.util.logging.Level;
  10. import java.util.logging.Logger;
  11. import javax.imageio.ImageIO;
  12. import javax.swing.JPanel;
  13.  
  14. public class PaintPipe extends JPanel {
  15.  
  16.     private static int x1 = 500;
  17.     private static int x2 = x1 + 140;
  18.     private static int x3 = x1 + 140;
  19.     private static int x4 = x2 + 140;
  20.  
  21.     private static boolean status1 = false;
  22.     private static boolean status2 = false;
  23.     private static boolean status3 = false;
  24.     private static boolean status4 = false;
  25.  
  26.     private static int h1, h2, h3, h4;
  27.  
  28.     private BufferedImage OngNuocTren, OngNuocDuoi;
  29.  
  30.     public int getH1() {
  31.         return h1;
  32.     }
  33.  
  34.     public int getH2() {
  35.         return h2;
  36.     }
  37.  
  38.     public int getH3() {
  39.         return h3;
  40.     }
  41.  
  42.     public int getH4() {
  43.         return h4;
  44.     }
  45.  
  46.     public static int getX1() {
  47.         return x1;
  48.     }
  49.  
  50.     public static int getX2() {
  51.         return x2;
  52.     }
  53.  
  54.     public static int getX3() {
  55.         return x3;
  56.     }
  57.  
  58.     public static int getX4() {
  59.         return x4;
  60.     }
  61.  
  62.     public void Random() {
  63.         Random random = new Random();
  64.  
  65.         if (status1 == false) {
  66.             h1 = random.nextInt(200);
  67.             status1 = true;
  68.         }
  69.         if (status2 == false) {
  70.             h2 = random.nextInt(200);
  71.             status2 = true;
  72.         }
  73.         if (status3 == false) {
  74.             h3 = random.nextInt(200);
  75.             status3 = true;
  76.         }
  77.         if (status4 == false) {
  78.             h4 = random.nextInt(200);
  79.             status4 = true;
  80.         }
  81.     }
  82.  
  83.     public void paintPipe(Graphics g) {
  84.  
  85.         try {
  86.             OngNuocTren = ImageIO.read(new File("D:\\Downloads\\FlappyBird\\res\\OngnuocTren.png"));
  87.             OngNuocDuoi = ImageIO.read(new File("D:\\Downloads\\FlappyBird\\res\\OngnuocDuoi.png"));
  88.  
  89.             g.drawImage(OngNuocTren, x1, 0, 60, h1, null);
  90.             g.drawImage(OngNuocDuoi, x1, h1 + 100, 60, 500, null);
  91.  
  92.             g.drawImage(OngNuocTren, x2, 0, 60, h2, null);
  93.             g.drawImage(OngNuocDuoi, x2, h2 + 100, 60, 500, null);
  94.  
  95.             g.drawImage(OngNuocTren, x3, 0, 60, h3, null);
  96.             g.drawImage(OngNuocDuoi, x3, h3 + 100, 60, 500, null);
  97.  
  98.             g.drawImage(OngNuocTren, x4, 0, 60, h4, null);
  99.             g.drawImage(OngNuocDuoi, x4, h4 + 100, 60, 500, null);
  100.  
  101.         } catch (IOException ex) {
  102.             Logger.getLogger(PaintPipe.class.getName()).log(Level.SEVERE, null, ex);
  103.         }
  104.     }
  105.  
  106.     public void MovePipe() {
  107.         x1--;
  108.         x2--;
  109.         x3--;
  110.         x4--;
  111.     }
  112.  
  113.     public void Recurrence() {
  114.         if (x1 == -40) {
  115.             x1 = 500;
  116.             status1 = false;
  117.         }
  118.         if (x2 == -40) {
  119.             x2 = 500;
  120.             status2 = false;
  121.         }
  122.         if (x3 == -40) {
  123.             x3 = 500;
  124.             status3 = false;
  125.         }
  126.         if (x4 == -40) {
  127.             x4 = 500;
  128.             status4 = false;
  129.         }
  130.     }
  131. }
  132.  
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
Main.java:14: error: class PaintPipe is public, should be declared in a file named PaintPipe.java
public class PaintPipe extends JPanel {
       ^
1 error
stdout
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Standard output is empty
https://ideone.com/4NFOnc
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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