Implementing 3D Object

Question

Implementing 3D Object
Hi, I am taking an introductory Java course at school, and I need some help with implementing one class to another.
I am trying to put Kuma.java (3D object) into KumaPanel.java (above the buttonPanel), but I have no clue how. Would it be easier if I just write one class instead of trying to link these two together?
Here are my codes:
Kuma.java:
import java.awt.Frame;
import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.behaviors.vp.OrbitBehavior;
import com.sun.j3d.utils.geometry.*;
import com.sun.j3d.utils.universe.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import com.sun.j3d.loaders.objectfile.ObjectFile;
import com.sun.j3d.loaders.*;
public class Kuma extends Applet
    static boolean application = false;
       public static void main(String[] args)
            application = true;
         Frame frame = new MainFrame(new Kuma(), 640, 480);
     public void init()
          setLayout(new BorderLayout());
          Canvas3D c = new Canvas3D(SimpleUniverse.getPreferredConfiguration());
         add("Center", c);
         SimpleUniverse universe= new SimpleUniverse(c); // setup the SimpleUniverse, attach the Canvas3D
         BranchGroup scene = createSceneGraph();
         universe.getViewingPlatform().setNominalViewingTransform();
        scene.compile();
        universe.addBranchGraph(scene); //add your SceneGraph to the SimpleUniverse
          //Rotate the cube
          OrbitBehavior cameraRotate = new OrbitBehavior(c);
          cameraRotate.setSchedulingBounds(new BoundingSphere());
          universe.getViewingPlatform().setViewPlatformBehavior(cameraRotate);
    public BranchGroup createSceneGraph()
         BranchGroup root = new BranchGroup();
         TransformGroup tg = new TransformGroup();
        Transform3D t3d = new Transform3D();
            try
                Scene s = null;
                ObjectFile f = new ObjectFile ();
              f.setFlags (ObjectFile.RESIZE | ObjectFile.TRIANGULATE | ObjectFile.STRIPIFY);
               if (application == false)
                    java.net.URL neuron = new java.net.URL (getCodeBase(), "walk.obj");
                    s = f.load (neuron);
                    tg.addChild (s.getSceneGroup ());
               else
                    String s1 = "walk.obj";
                    s = f.load (s1);
                    tg.addChild (s.getSceneGroup ());
           catch (java.net.MalformedURLException ex){
           catch (java.io.FileNotFoundException ex){
           // create an ambient light
           BoundingSphere bounds = new BoundingSphere (new Point3d (0.0, 0.0, 0.0), 100.0);
           Color3f ambientColor = new Color3f (1.0f, 1.0f, 1.0f);
           AmbientLight ambientLightNode = new AmbientLight (ambientColor);
           ambientLightNode.setInfluencingBounds (bounds);
           root.addChild (ambientLightNode);
           root.addChild(tg);
          t3d.setTranslation(new Vector3f(100.0f, 0.0f, -100.0f));
           return root;
KumaPanel.java:
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
import java.io.File;
import java.io.IOException;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class KumaPanel extends JFrame implements ActionListener, KeyListener{
     JPanel buttonPanel = new JPanel();
     public static int WIDTH = 800;
     public static int HEIGHT = 600;
     KumaPanel()
          ///Create a Content Window
          setSize(WIDTH, HEIGHT); //setting the size of the window
          setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//for closing the window
          setTitle("Nazo Nazo"); //title of the window
          Container contentPane = getContentPane();
          contentPane.setBackground(Color.blue); //background color of the panel
          ///Create a White Button Panel
          contentPane.setLayout(new BorderLayout());
          buttonPanel.setLayout(new FlowLayout()); //set layout type to FlowLayout
          buttonPanel.setBackground(Color.black); //background to white
          contentPane.add(buttonPanel,BorderLayout.SOUTH); //add buttonPanel on contentPanel
          ///Create First Button with Kuma Ranger on it
          ImageIcon smiley1 = new ImageIcon("kuma.jpg");
          JButton firstButton = new JButton("kuma");
          firstButton.setIcon(smiley1);
          firstButton.setBackground(Color.white);
          buttonPanel.add(firstButton);          //add button to buttonPanel
          firstButton.addActionListener(this);
          ///Create First Button with Mrs.Smile on it
          ImageIcon smiley2 = new ImageIcon("inu.jpg");
          JButton secondButton = new JButton("inu");
          secondButton.setIcon(smiley2);
          secondButton.setBackground(Color.white);
          buttonPanel.add(secondButton);          //add button to buttonPanel
          secondButton.addActionListener(this);
          ///Create First Button with Mrs.Smile on it
          ImageIcon smiley3 = new ImageIcon("usa.jpg");
          JButton thirdButton = new JButton("usa");
          thirdButton.setIcon(smiley3);
          thirdButton.setBackground(Color.white);
          buttonPanel.add(thirdButton);          //add button to buttonPanel
          thirdButton.addActionListener(this);
     public static void main(String[] args)
          KumaPanel iDemo = new KumaPanel();
          iDemo.setVisible(true);
     public void actionPerformed(ActionEvent e) {
          Container contentPane = getContentPane(); //getting the contentPane of the window
          if (e.getActionCommand().equals("inu")) {
               contentPane.setBackground(Color.green);
               System.out.println("I have pressed the GREEN smiley...");
          else if (e.getActionCommand().equals("kuma")) {
               contentPane.setBackground(Color.red);
               System.out.println("I have pressed the RED smiley...");
          else if (e.getActionCommand().equals("usa")) {
               contentPane.setBackground(Color.yellow);
               System.out.println("I have pressed the YELLOW smiley...");
          else
               System.out.println("There is an error.");
     @Override
     public void keyPressed(KeyEvent e) {
          // TODO Auto-generated method stub
     @Override
     public void keyReleased(KeyEvent e) {
          // TODO Auto-generated method stub
     @Override
     public void keyTyped(KeyEvent e) {
          // TODO Auto-generated method stub
}Thank you!

Answer 1

cider wrote:
I am trying to put Kuma.java (3D object) Not exactly. It's an Applet, and this distinction is important.
into KumaPanel.java (above the buttonPanel), and this is a JFrame, another important distinction.
but I have no clue how. Would it be easier if I just write one class instead of trying to link these two together?In general, no. You want to keep things that are logically distinct in their own classes and files. BUT, combining what you have posted here unfortunately is like combining oil and water. Since Kuma is an Applet, it uses AWT GUI components which don't mesh well with KumaPanel's Swing components. Also, an Applet is Root container as is a JFrame. Both of them are sort of like final destinations for components and don't readily "go in" to something else. You need to combine something that is compatible with the other and easily goes into something else. For instance if Kuma where a JPanel, it would be be easy to put it into a JFrame somewhere.
I suggest that you go through the Java Swing tutorials to get a better appreciation of java GUI programming before trying to tackle something like what you are trying to do here.