How to run an applet in java in the browser

0

Well, I did an applet program, (extending the JApplet class) and generated the .jar file, put it in a folder and wrote an HTML page to run it:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>Engineer's Showdown</title>
</head>

<body style="background-color:black;">
<center>
    <applet code="pack.game.Applet.class" archive="engineers_applet.jar" width="1024" height="768"
    style="color:white;">
    Applet tag
    </applet>
    <br/>
    <object archive="engineers_applet.jar" classid="java:pack.game.Applet.class" codetype="application/java"
    width="1024" height="768" style="color:white;">
    Object tag
    </object>
</center>
</body>

When you access the site, the applet simply does not run, when I press F12 to see the console, it also does not appear anything, if it is also useful, here is my Applet.java class:

package pack.game;
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Toolkit;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.event.MouseWheelEvent;
import java.awt.event.MouseWheelListener;
import java.awt.image.BufferedImage;
import java.awt.image.VolatileImage;

import javax.swing.JApplet;

import engine.window.Manager; import engine.window.Painel; import engine.window.Window; import pack.objects.Res; import pack.states.Ending; import pack.states.Game; import pack.states.Menu;

public class Applet extends JApplet implements Runnable, KeyListener, MouseListener, MouseMotionListener, MouseWheelListener{

/** * */ private static final long serialVersionUID = 1L; Thread thread; VolatileImage img; Graphics2D g; double delta; double FPS = 60; double targetTime = 1000.0/FPS; public void start(){ img = createVolatileImage(1024, 768); g = img.createGraphics(); setFocusTraversalKeysEnabled(false); thread = new Thread(this); addKeyListener(this); addMouseListener(this); addMouseMotionListener(this); addMouseWheelListener(this); thread.start(); setFocusable(true); requestFocus(); Window.width = 1024; Window.height = 768; } public void init(){ Main.loadPonyAnimations(); Main.loadWeaponImages(); Res.load(); // Transparent 16 x 16 pixel cursor image. BufferedImage cursorImg = new BufferedImage(16, 16, BufferedImage.TYPE_INT_ARGB); // Create a new blank cursor. Cursor blankCursor = Toolkit.getDefaultToolkit().createCustomCursor( cursorImg, new Point(0, 0), "blank cursor"); setCursor(blankCursor); Manager.addState(new Menu()); Manager.addState(new Game()); Manager.addState(new Ending()); } public void paint(Graphics g){ g.drawImage(img, 0, 0, null); } public void run() { long startTime; long elapsedTime; initialize(); while(true){ startTime = System.nanoTime(); update(); draw(); elapsedTime = System.nanoTime() - startTime; while(elapsedTime/1000000.0 < targetTime){ elapsedTime = System.nanoTime() - startTime; } delta = (System.nanoTime() - startTime)/1000000.0; } } public void initialize(){ Manager.init(); } public void update(){ Manager.update((float) delta); } public void draw(){ g.setColor(Color.black); g.fillRect(0, 0, Window.width, Window.height); g.setColor(Color.white); Manager.draw(g); repaint(); } public void mouseDragged(MouseEvent m) { Painel.MouseX = m.getX(); Painel.MouseY = m.getY(); } /** * Recebe quando o mouse foi movimentado dentro da tela */ public void mouseMoved(MouseEvent m) { Painel.MouseX = m.getX(); Painel.MouseY = m.getY(); } /** * Recebe quando o mouse foi clicado */ public void mouseClicked(MouseEvent m) { } /** * Recebe quando o mouse entrou na tela */ public void mouseEntered(MouseEvent m) { Painel.MouseX = m.getX(); Painel.MouseY = m.getY(); } /** * Recebe quando o mouse saiu da tela */ public void mouseExited(MouseEvent m) { Painel.MouseX = m.getX(); Painel.MouseY = m.getY(); } /** * Recebe quando o mouse foi pressionado */ public void mousePressed(MouseEvent m) { Manager.mousePressed(m.getButton()); } /** * Recebe quando o mouse foi solto */ public void mouseReleased(MouseEvent m) { Manager.mouseReleased(m.getButton()); } /** * Recebe quando uma tecla foi pressionada */ public void keyPressed(KeyEvent e) { Manager.keyPressed(e); } /** * Recebe quando uma tecla foi solta */ public void keyReleased(KeyEvent e) { Manager.keyReleased(e); } /** * Recebe quando uma tecla foi digitada */ public void keyTyped(KeyEvent e) { } public void mouseWheelMoved(MouseWheelEvent m) { Manager.mouseWheelMoved(m); }

}

Also a print of the page, and my folder:

What am I doing wrong? Do I need to do something with this .jar before?

    
asked by anonymous 09.12.2015 / 14:28

1 answer

1
  

Chrome no longer supports NPAPI (technology required for Java applets)

Source: link

    
09.12.2015 / 14:43