Images in an applet

Question

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class CardDeck5 extends Applet implements ActionListener
{//start class CardDeck3
private CardLayout cardLayout;
private Panel main,crd1,crd2,crd3,crd4,crd5,p,card;
private Button first,second,third,fourth,fifth,sixth;
private Image image1,image2,image3,image4,image5,image6,image7,image8;
static int typeImage=0;
public void init()
{     //start void init
Image image1=getImage(getDocumentBase(),"chi2.gif");
     /*image2=getImage(getDocumentBase(),"Frog.gif"); //establish variables for images
     image3=getImage(getDocumentBase(),"Cryn_syf.gif");
     image4=getImage(getDocumentBase(),"Cnitemid.gif");
     image5=getImage(getDocumentBase(),"aoxom.gif");
     image6=getImage(getDocumentBase(),"stealy.gif");
     image7=getImage(getDocumentBase(),"lake_tahoe_ban.gif");
     image8=getImage(getDocumentBase(), "mykistys.jpg");*/
     prepareImage(image1, this);
     /*prepareImage(image2, this);
     prepareImage(image3, this);
     prepareImage(image4, this);
     prepareImage(image5, this);
     prepareImage(image6, this);
     prepareImage(image7, this);
prepareImage(image8, this);*/
setLayout(new BorderLayout());     //set layout
card = new Panel();                                   //est main panel
     card.setSize(500,500);
cardLayout = new CardLayout();     //est card layout
card.setLayout(cardLayout);          //put cardlayout on panel
add("Center", card);
/*first card*/
Picture Pic1=new Picture();                    //create Pic1 of type Picture
Pic1.setSize(400,400);               //set size of panel
crd1=new Panel();                    // Pic1 to panel crd1
crd1.add(Pic1);                     //add Pic 1 to panel crd1
card.add(crd1,"1");               //add crd1 to main panel
/*second card*/
Picture Pic2=new Picture();
     Pic2.setSize(400,400);
crd2=new Panel();
crd2.add(Pic2);
card.add(crd2,"2");
/*third card*/
     Picture Pic3=new Picture();
     Pic3.setSize(400,400);
crd3=new Panel();
crd3.add(Pic3);
card.add(crd3,"3");
/*fourth panel*/
Picture Pic4=new Picture();
     Pic4.setSize(400,400);
     crd4=new Panel();
     crd4.add(Pic4);
card.add(crd4,"4");
/*fifth panel*/
Picture Pic5=new Picture();
Pic5.setSize(400,400);
crd5=new Panel();
crd5.add(Pic5);
card.add(crd5,"5");
Panel p = new Panel();
p.setLayout(new GridLayout(1,3));
first=new Button("Image1");
first.addActionListener(this);
p.add(first);
second=new Button("Image2");
second.addActionListener(this);
p.add(second);
third=new Button("Image3");
third.addActionListener(this);
p.add(third);
fourth=new Button("Image4");
fourth.addActionListener(this);
p.add(fourth);
add( card, BorderLayout.CENTER);               //put card panel in center
add(p,BorderLayout.SOUTH);                         //add button panel to south border
} //end constructor
public void actionPerformed(ActionEvent e)
Object source=e.getSource();
if (source == first)
cardLayout.show(card,"2");
          typeImage=1;
          card.repaint();
          //System.out.println("typeimage in ap "+ typeImage);
if (source== second)
cardLayout.show(card,"3");
     typeImage=2;
     card.repaint();
     // System.out.println("typeimage in ap "+ typeImage);
if (source == third)
          cardLayout.show(card,"4");
          typeImage=3;
          card.repaint();
          //System.out.println("typeimage in ap "+ typeImage);
if (source == fourth)
          cardLayout.show(card,"5");
          typeImage=5;
          card.repaint();
          //System.out.println("typeimage in ap "+ typeImage);
}//end action performed
class Picture extends Canvas
{  //picture start
protected void showImage(Graphics g, int x, int y, Image image,
          String loadingMessage, String errorMessage)
          // Get the status of the image
          int flags = checkImage(image, this);
          // If the image aborted or had an error, print the error message
          if ((flags & (ImageObserver.ABORT+ImageObserver.ERROR)) != 0)
          g.drawString(errorMessage, x, y+30);
          return;
          // If the image has been loaded fully, display it
          } else if ((flags & ImageObserver.ALLBITS) != 0) {
          g.drawImage(image, x, y, this);
          // If the image is still loading, display the loading message
          } else {
          g.drawString(loadingMessage, x, y+30);
          return;
     public void paint (Graphics g )
     {      //begin paint
g.drawRect(0,0,400,400);
showImage(g,0,0,image8,"image loading","image can't load");
showImage(g,40,0,image7,"image loading","image can't load");
switch(typeImage)
          case 1:
               //System.out.println("typeimage in paint after switch" +typeImage);
               showImage(g,100,100,image1,"image loading","image can't load");
               break;
     case 2:
               //System.out.println("typeimage in paint after switch" +typeImage);
               g.drawString("We miss you!",100,100);
               showImage(g,90,90,image2,"image loading","image can't load");
break;
          case 3:
                    //System.out.println("typeimage in paint after switch" +typeImage);             //begin else if
g.drawString("Its crying time",150,100);
                    showImage(g,100,150,image3,"image loading","image can't load");
break;
          case 4:
//System.out.println("typeimage in paint after switch" +typeImage);
                                   showImage(g,130,75,image6,"image loading","image can't load");
break;
     case 5:
                    //System.out.println("typeimage in paint after switch" +typeImage);
g.drawString(" Album cover from Aoxomoxa",150,230);
                         showImage(g,130,75,image5,"image loading", "image can't load");
break;
}//end switch
     } //end paint
}          //end class picture
} //end class CardDeck1
when I compile the previous applet(that use to work under previous version) I get the following errors
D:\data\CardDeck5.java:16: incompatible types
found : java.awt.Image
required: Image
image1=getImage(getDocumentBase(),"chi2.gif");
^
D:\data\CardDeck5.java:25: cannot resolve symbol
symbol : method prepareImage (Image,CardDeck5)
location: class CardDeck5
     prepareImage(image1, this);
^
D:\data\CardDeck5.java:154: cannot resolve symbol
symbol : method checkImage (Image,CardDeck5.Picture)
location: class CardDeck5.Picture
          int flags = checkImage(image, this);
^
D:\data\CardDeck5.java:157: cannot resolve symbol
symbol : variable ImageObserver
location: class CardDeck5.Picture
          if ((flags & (ImageObserver.ABORT+ImageObserver.ERROR)) != 0)
^
D:\data\CardDeck5.java:157: cannot resolve symbol
symbol : variable ImageObserver
location: class CardDeck5.Picture
          if ((flags & (ImageObserver.ABORT+ImageObserver.ERROR)) != 0)
^

Answer 1

try to fix the errors your self beware with the datatypes, about the pictures, they are stored in the "server side" and applets run on the "client side" and applets have restricted acces to server resources...