Image in the JPanel

Hello guys,
I am using netBeans 4.0.
I want to put a JPG image as the background in a JPanel.In netBeans IDE I cant do it. Is there a way to do this?
Thanks

Probably not. Learn how to code this is Java yourself. Search the forum using keywords "background image" and I believe you should file some solutions from other postings.

Similar Messages

How to add an image to the JPanel

i have been searching for many to add in an iamge to the JPanel...but with error..can anyone kndly help?
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.event.*;
public class adv extends JPanel {
ImageIcon pic = new ImageIcon("home.gif");
public void paintComponent(Graphics g) {
g.drawImage(pic,0,0,this);
super.paintComponent(g);
public static void main(String[] args) {
adv mpg= new adv();
mpg.setLayout(new GridLayout(5,1,15,15));
     JFrame window = new JFrame ("dv");
window.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
window.add(mpg);
window.setVisible(true);
window.setSize (550,225);
}

i have try out the suggestion that u have provided...still with error...wat can i do to solve it? any other way?
below is how i add to my program...
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.event.*;
public class adv extends JPanel {
    ImageIcon pic = createImageIcon("home.gif");
    public void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(pic.getImage(),0,0,this);
    public static void main(String[] args) {
       /*adv mpg= new adv();
      mpg.setLayout(new GridLayout(5,1,15,15));
         JFrame window = new JFrame ("dv");
         window.setLayout(new BorderLayout());
         frame.add(mpg, BorderLayout.CENTER);
       window.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
       window.add(mpg);
       window.setVisible(true);
       window.setSize (550,225);*/
       adv mpg = new adv();
       JFrame frame = new JFrame();
     frame.setLayout(new BorderLayout());
     frame.add(pic, BorderLayout.CENTER);
     frame.setSize(500, 500);
     frame.setVisible(true);
}

How do you change the image in a JPanel?

Hey! (firstly, i need to use image on a JPanel, label&icon not an option).
I've made my JPanel class
    public class DrawingPanel extends JPanel {
        Image img;
        DrawingPanel() {
            Image img = Toolkit.getDefaultToolkit().getImage("13.jpg"); //default image at startup
        public void paintComponent (Graphics g) {
            super.paintComponent (g);
            // Use the image width & height to find the starting point
            int imgX = getSize ().width/2 - img.getWidth (this);
            int imgY = getSize ().height/2 - img.getHeight (this);
            //Draw image centered in the middle of the panel
            g.drawImage (img, 0, 0, this);
        } // paintComponent
    } // DrawingPanelAnd I've made my instance of it and added it to the Frame:
    DrawingPanel imagePanel = new DrawingPanel();Now, I need to change the image on the JPanel according to the user's input. I have the string of the location of the new image. How do I update the JPanel to display this new image? Any help greatly appreciated!!

Well... You could just add a method in your class which sets the image according to the new image name you provided. Something like this:
    public class DrawingPanel extends JPanel {
        Image img;
        DrawingPanel() {
            img = Toolkit.getDefaultToolkit().getImage("13.jpg"); //default image at startup
        public void setImage(String imageName) {
                img = Toolkit.getDefaultToolkit().getImage(imageName); //Loading the desired image
        public void paintComponent (Graphics g) {
            super.paintComponent (g);
            // Use the image width & height to find the starting point
            int imgX = getSize ().width/2 - img.getWidth (this);
            int imgY = getSize ().height/2 - img.getHeight (this);
            //Draw image centered in the middle of the panel
            g.drawImage (img, 0, 0, this);
        } // paintComponent
    } // DrawingPanel

Help! Read raw Image data from a file and display on the JPanel or JFrame.

PLEASE HELP, I want to Read Binary(Raw Image)data (16 bit integer) from a file and display on the JPanel or JFrame.

Hey,
I need to do the same thing. Did you find a way to do that?
Could you sent me the code?
It's urgent, please.
My e-mail is [email protected]

How to moving image or graphic on the JPanel??

Hi,
Everybody got any idea to do using mouse listener to click and moving the image or graphic and then to put the object at any coordinate on the JPanel???
Thank to reply..

You don't
You cannot use other countries itunes stores.
Sorry

How do you set an image into the background of a JPanel or JFrame?

How do you set an image into the background of a JPanel or JFrame?

Something like this, Ive thrown in an ImageIcon on a
button too for good measure.
import java.awt.*;
import javax.swing.*;
public class JFrameImage extends JFrame {
public JFrameImage() {
Container c    = getContentPane();
JPanel panel = new JPanel(){
             public void paintComponent(Graphics g)     {
ImageIcon img = new
= new ImageIcon("background.jpg");
                  g.drawImage(img.getImage(), 0, 0, null);
                  super.paintComponent(g);
        panel.setOpaque(false);
ImageIcon icon = new ImageIcon("onButton.jpg");
JButton button = new JButton(icon);
panel.add(button);
c.add(panel);
public static void main(String[] args) {
JFrameImage frame = new JFrameImage();
frame.setSize(200,200);
frame.setVisible(true);
Going totally fancy pants
ImageIcon bigImage = new ImageIcon(bgImage.getImage().getScaledInstance(getWidth(), getHeight(),Image.SCALE_REPLICATE));
g.drawImage(bigImage.getImage(), 0, 0, this); Will scale the image to the size of the panel
whereas
for (int y = 0; y < getHeight(); y = y + image.getHeight(null))
for (int x = 0; x< getWidth(); x = x + image.getWidth(null))
g.drawImage(image, x, y, this); Will give a tiled effect
Try tiling with an animated gif and bring your processor to a standstill.

Animated GIF Image on a JPanel.

How can I display an animated GIF image on a JPanel? It should animate after displaying.
Regards

I think this code should display an animated GIF image on a JPanel.
-Mani
import javax.swing.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.*;
public class Animation {
public static void main(String args[]) {
JLabel imageLabel = new JLabel();
JLabel headerLabel = new JLabel();
JFrame frame = new JFrame("JFrame Animation");
JPanel jPanel = new JPanel();
//Add a window listner for close button
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
// add the header label
headerLabel.setFont(new java.awt.Font("Comic Sans MS", Font.BOLD, 16));
headerLabel.setText("Animated Image!");
jPanel.add(headerLabel, java.awt.BorderLayout.NORTH);
//frame.getContentPane().add(headerLabel, java.awt.BorderLayout.NORTH);
// add the image label
ImageIcon ii = new ImageIcon("d:/dog.gif");
imageLabel.setIcon(ii);
jPanel.add(imageLabel, BorderLayout.CENTER);
frame.getContentPane().add(jPanel, java.awt.BorderLayout.CENTER);
frame.pack();
frame.setVisible(true);
}

Problm with 'notepad' code..image of the buttons not displayed..help.. ;-(

I have a source code for developing a notepad but the problem is that when i run it the buttons which i've used as shortcuts don't have there photos displayed on them... they just come across as a rectangular button rather than a cut or a copy photo...i've even saved those images in the c drive only where other files like .class file are stored still its not working...plz help...
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
public class Notepro extends JFrame implements ActionListener
     JMenuBar mbar;
     JMenu file,edit,format,font,font1,font2;
     JMenuItem item1,item2,item3,item4;
     JMenuItem item5,item6,item7,item8,item9,item10;
     JMenuItem fname1,fname2,fname3,fname4;
     JMenuItem fstyle1,fstyle2,fstyle3,fstyle4;
     JMenuItem fsize1,fsize2,fsize3,fsize4;
     JButton button,button1,button2,button3,button4,button5;
     JPanel mainpanel;
     JTextArea text;
     JScrollPane jsp;
     String command=" ";
     String str=" ";
     String str1=" ",str2=" ",str3=" ";
     String str4=" ";
     String str6=" ";
     String str7=" ",str8=" ",str9=" ";
     int len1;
     int i=0;
     int pos1;
     int len;
     public Notepro(String str)
     super(str);
     mainpanel=new JPanel();
     mainpanel=(JPanel)getContentPane();
     mainpanel.setLayout(new FlowLayout());
    MyWindowAdapter adapter=new MyWindowAdapter(this);
    addWindowListener(adapter);
     mbar=new JMenuBar();
     setJMenuBar(mbar);
     file=new JMenu("File");
     edit=new JMenu("Edit");
     format=new JMenu("Format");
     file.add(item1=new JMenuItem("New..."));
     file.add(item2=new JMenuItem("Open"));
     file.add(item3=new JMenuItem("Save As..."));
     file.add(item4=new JMenuItem("Exit"));
     mbar.add(file);
     edit.add(item5=new JMenuItem("Cut"));
     edit.add(item6=new JMenuItem("Copy"));
     edit.add(item7=new JMenuItem("Paste"));
     edit.add(item8=new JMenuItem("Delete"));
     edit.add(item9=new JMenuItem("Select All"));
     mbar.add(edit);
format.add(item10=new JMenuItem("Font"));
     mbar.add(format);
        button = new JButton(new ImageIcon("new.gif"));
          mainpanel.add(button);
          button1 = new JButton(new ImageIcon("open.gif"));
          mainpanel.add(button1);
          button2 = new JButton(new ImageIcon("save.gif"));
          mainpanel.add(button2);
          button3 = new JButton(new ImageIcon("copy.gif"));
          mainpanel.add(button3);
          button4 = new JButton(new ImageIcon("cut.gif"));
          mainpanel.add(button4);
          button5 = new JButton(new ImageIcon("paste.gif"));
          mainpanel.add(button5);
     item1.addActionListener(this);
     item2.addActionListener(this);
     item3.addActionListener(this);
     item4.addActionListener(this);
     item5.addActionListener(this);
     item6.addActionListener(this);
     item7.addActionListener(this);
     item8.addActionListener(this);
     item9.addActionListener(this);
     item10.addActionListener(this);
     button.addActionListener(this);
     button1.addActionListener(this);
     button2.addActionListener(this);
     button3.addActionListener(this);
     button4.addActionListener(this);
     button5.addActionListener(this);
     text=new JTextArea(60,80);
     mainpanel.add(text);
jsp=new JScrollPane(text);
        mainpanel.add(jsp);
       public void actionPerformed(ActionEvent ae)
          if(ae.getSource()==button4)
          str=text.getSelectedText();
          i=text.getText().indexOf(str);
          text.replaceRange(" ",i,i+str.length());
          if(ae.getSource()==button)
          dispose();
          Notepro note1 = new Notepro("Untitled-Notepad");
          note1.setSize(500,500);
          note1.setVisible(true);
          command=(String)ae.getActionCommand();
          if(command.equals("New..."))
          dispose();
          Notepro note1 = new Notepro("Untitled-Notepad");
          note1.setSize(500,500);
          note1.setVisible(true);
          try
          if((command.equals("Open"))||(ae.getSource()==button1))
          str4=" ";
          FileDialog dialog=new FileDialog(this,"Open");
          dialog.setVisible(true);
          str1=dialog.getDirectory();
          str2=dialog.getFile();
          setTitle(str2);
          str3=str1+str2;
          File f=new File(str3);
          FileInputStream fobj=new FileInputStream(f);
          len=(int)f.length();
          for(int j=0;j<len;j++)
               char str5=(char)fobj.read();
               str4=str4 + str5;
            text.setText(str4);
          this.text.setText(str4);
          catch(IOException e)
          try
          if((command.equals("Save As..."))||(ae.getSource()==button2))
          FileDialog dialog1=new FileDialog(this,"Save As",FileDialog.SAVE);
          dialog1.setVisible(true);
          str7=dialog1.getDirectory();
          str8=dialog1.getFile();
          str9=str7+str8;
          str6=text.getText();
          len1=str6.length();
          byte buf[]=str6.getBytes();
          File f1=new File(str9);
          FileOutputStream fobj1=new FileOutputStream(f1);
          for(int k=0;k<len1;k++)
          fobj1.write(buf[k]);
          fobj1.close();
          this.setTitle(str8);
          catch(IOException e){}
          if(command.equals("Exit"))
          System.exit(0);
          if((command.equals("Cut"))||(ae.getSource()==button4))
          str=text.getSelectedText();
          i=text.getText().indexOf(str);
          text.replaceRange(" ",i,i+str.length());
          if((command.equals("Copy"))||(ae.getSource()==button3))
          str=text.getSelectedText();
          if((command.equals("Paste"))||(ae.getSource()==button5))
          pos1=text.getCaretPosition();
          text.insert(str,pos1);
          if(command.equals("Delete"))
          String msg=text.getSelectedText();
          i=text.getText().indexOf(msg);
          text.replaceRange(" ",i,i+msg.length());
          if(command.equals("Font"))
          MyFont m=new MyFont(this);
     public static void main(String args[])
     Notepro note = new Notepro("Untitled-Notepad");
     note.setSize(500,500);
     note.setVisible(true);
class MyWindowAdapter extends WindowAdapter
Notepro mynote;
MyWindowAdapter(Notepro mynote)
this.mynote=mynote;
public void windowClosing(WindowEvent we)
System.exit(0);
class MyFont extends Dialog implements ActionListener,ItemListener
GraphicsEnvironment ge;
java.awt.List l1,l2,l3;
Button b1,b2;
Font f1[];
String f[];
int i,j;
Notepro p;
TextField tf1,tf2,tf3;
Label ll1,ll2,ll3;
String fn;
int fs,fsize;
public MyFont(Notepro myno)
     super(myno,"Font",true);
setLayout(null);
p=myno;
ge=GraphicsEnvironment.getLocalGraphicsEnvironment();
l1=new java.awt.List();
l2=new java.awt.List();
l3=new java.awt.List();
b1=new Button("OK");
b2=new Button("CANCEL");
tf1=new TextField(10);
tf2=new TextField(10);
tf3=new TextField(10);
ll1=new Label("Font");
ll2=new Label("Font Style");
ll3=new Label("Size");
     ll1.setBounds(20,60,100,20);
     add(ll1);
     tf1.setBounds(20,80,100,20);
     add(tf1);
        l1.setBounds(20,100,100,150);
        add(l1);
     ll2.setBounds(140,60,100,20);
     add(ll2);
     tf2.setBounds(140,80,100,20);
     add(tf2);
   l2.setBounds(140,100,100,150);
add(l2);
     ll3.setBounds(260,60,100,20);
     add(ll3);
     tf3.setBounds(260,80,100,20);
     add(tf3);
       l3.setBounds(260,100,100,150);
add(l3);
     b1.setBounds(380,70,80,20);
add(b1);
     b2.setBounds(380,95,80,20);
add(b2);
f=ge.getAvailableFontFamilyNames();
for(i=0;i<f.length;i++)
   l1.add(f);
l2.add("Regular");
l2.add("Bold");
l2.add("Italic");
l2.add("BoldItalic");
for(i=8;i<=72;i+=2)
     l3.add(String.valueOf(i));
b2.addActionListener(this);
b1.addActionListener(this);
l1.addItemListener(this);
l2.addItemListener(this);
l3.addItemListener(this);
setSize(480,280);
setResizable(false);
setVisible(true);
public void actionPerformed(ActionEvent fe)
if(fe.getSource()==b2)
dispose();
if(fe.getSource()==b1)
     p.text.setFont(new Font(fn,fs,fsize));
     dispose();
public void itemStateChanged(ItemEvent ie)
     if(ie.getSource()==l1)
tf1.setText(l1.getSelectedItem());
     fn=tf1.getText();
     if(ie.getSource()==l2)
tf2.setText(l2.getSelectedItem());
     if(tf2.getText().equals("Bold"))
          fs=Font.BOLD;
     else
if(tf2.getText().equals("Italic"))
          fs=Font.ITALIC;
     else
          if(tf2.getText().equals("BoldItalic"))
          fs=Font.BOLD+Font.ITALIC;
     else
          fs=Font.PLAIN;
     if(tf2.getText()=="")
     tf2.setText("Regular");
     fs=Font.PLAIN;
     if(ie.getSource()==l3)
     tf3.setText(l3.getSelectedItem());
     fsize=Integer.parseInt(tf3.getText());
if(tf3.getText()=="")
               fsize=8;

swatschiks wrote:
i checked it again but the files were in c drive only...nwaz is my link "open.gif" ok? maybe the problem lies in the links? Can u suggest me smthng? M a newbee..so plz if u can b more specific...i wud b gr8ful...need d help urgentlyOne word of unasked for advice: Please avoid unnecessary abbreviations in your posts here. I recommend this for several reasons:
1) Programming is an exercise in precision. When you communicate here (or anywhere) about programming issues and questions, you want this communication to be as clear as possible to avoid any chance for ambiguity. I'd say at least half the answers here are requests for clarification. Let's avoid that.
2) For many here, English is not their first (or second or third) language. It's hard enough for them to understand what people are posting here much less if it's couched in obscure and non-standard abbreviations.
3) Extra letters don't cost anything here, so you might as well use them.
4) It makes the poster seem a bit immature and thus for some not worthy of help.
That being said, what are the full paths of: your image files, your class files, and what package is your program in?
In that same package, what happens if you compile and run this program?
import java.io.File;
public class WhereAreMyFiles
public static void main(String[] args)
    File myFile = new File("Fubar.txt");
    System.out.println(myFile.getAbsolutePath());
}Notice the output very closely because that's where Java is looking to find your image files.

How to use a backgroud image in a JPanel.....

hi,
How can I display a background image for a JPanel.....
I have searched this forum but all solutions I found are where JPanel at the end has to be displayed on a frame in an application...
I need to use JPanel on Applet.......
Actually I am switching JPanels on JApplet as screens for a game....
I need to display background image for one of the JPanel class that has to be called by an Applet class....
Thanks a lot for any help.

Thanks a lot for your help.
How do we specify URL to use an image from net. Is itt like I open an image file on some website & use its address? Kindly add here some website too so that its more clear for me.
Thanks a lot for any help & all help your provided previously.
String imageFilePath = "urlOfMyImageFile"; // I am asking about parameter to be used here
ImageIcon ii = new ImageIcon(imageFilePath);
Image image = ii.getImage();

How do I draw an image on a JPanel?

To be honest I have no idea even where to start. I tried hacking through the tutorials but it just didn't help me (normally they do, I don't what's up).
Anyway, so what I'm trying to do is build a game. The Graphics2D is great for simple shapes but drawing characters is getting kind of ridiculous (tedious + difficult + looks bad). So, I need to figure out how to display an image on a JPanel.
To that end I have several questions.
1 - What image type do I use? Like jpeg, bmp, gif, etc.
2 - How do I make parts of it transparent?
3 - How do I make it appear on the screen, given some coordinates on the JPanel?

To draw an image directly to a JPanel given certain coordinates, you have to create a custom JPanel and override its paintComponent() method. Like this:
class PaintPanel extends JPanel{
public void paintComponent(Graphics g){
super.paintComponent(g);
//painting code goes here}
}Java can load in and draw GIF and JPEG images. If you decide to use GIF files, any good image editor like Adobe Photoshop should be able to make them transparent for you before the fact. If you want to set transparency within your java program you will have to create a BufferedImage and make certain colors within it transparent, but I would like to know how to do that as much as you do.

How to paint image in the JInternalFrame Urgent plz

sir i want to draw a image on the back side of the JInternalFrame
how can i do
I do this job by using the following code
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.border.*;
public class MyInternalFrame extends JInternalFrame
MyButtonPanel2 panel=new MyButtonPanel2();
public static JPanel p=new JPanel();
ImageIcon img=new ImageIcon("images/beach.jpg");
JLabel backlabel;
public static int w=376,h=50;
MyInternalFrame(int width,int height,String str)
setOpaque(false);
this.setIconifiable(true);
this.setSize(width,height);
this.setTitle(str);
this.setFrameIcon(new ImageIcon("images/smileyr.gif"));
setMinimumSize(new Dimension(width,height));
setPreferredSize(new Dimension(width,height));
this.getContentPane().setLayout(null);
panel.setBounds((width/2)-188,height-84,w,h);
p.setLayout(null);
int imgwidth=img.getIconWidth();
int imgheight=img.getIconHeight();
if((imgwidth<this.getWidth()) || (imgwidth>this.getWidth()))
imgwidth=this.getWidth();
if((imgheight<this.getHeight()) || (imgheight>this.getHeight()))
imgheight=this.getHeight();
backlabel=new JLabel(img);
backlabel.setBounds(0,0,imgwidth,imgheight);
p.add(backlabel,new Integer(Integer.MIN_VALUE));
p.setBounds(0,0,width,height);
this.getContentPane().add(panel,new Integer(Integer.MAX_VALUE));
this.getContentPane().add(p);
setVisible(true);
but when i add another panel in the object p the component of another
panel does not apper like this
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.border.*;
public class companypanel extends MyInternalFrame
LimitTextF nametxt=new LimitTextF(30,50,24);
MyLabel name=new MyLabel("Company Name");
LimitTextF codetxt=new LimitTextF(4,50,24);
MyLabel code=new MyLabel("Company Code");
companypanel(int width,int height,String str)
super(width,height,str);
name.setBounds(10,20,100,25);
nametxt.setBounds(140,20,80,25);
super.p.add(name);super.p.add(nametxt);
plz tell me how can i do?

These links will help.
http://java.sun.com/products/jfc/tsc/articles/swing2d/
http://java.sun.com/j2se/1.4.2/docs/guide/2d/spec/j2d-awt.html
http://forum.java.sun.com/thread.jsp?forum=31&thread=409047
rykk

How to add an image to a JPanel ?

hi,
do you now how to add an image to a JPanel ?
thanks a lot !

You can either use the Graphics method drawImage from the panel's paintComponent(Graphics g) method, or you can create an ImageIcon, with your Image in its constructor. And then create a JLabel, passing that ImageIcon in its constructor. Then, you can simple use the panel.add() method to add that JLabel.
For using the paintComponent method, check out the thread already posted above (I'll type it in again just in case)
http://forum.java.sun.com/thread.jsp?forum=31&thread=288769
If you want to use a JLabel, you can do something like this:
Image img;
JLabel label = new JLabel(new ImageIcon(img));
JPanel panel = new JPanel();
panel.setLayout(new FlowLayout());
panel.add(label);Val

How to add an image in a JPanel

Hi All,
How to add an image in a JPanel and make it display.
Thanks,

I have tried with the below code. If I there is any fault please correct me.
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
public class HomePage extends JFrame implements     ActionListener {
    JButton cmdClick;
    JLabel label;
    JPanel homePanel = new JPanel();
    JPanel headPanel = new JPanel();
    JPanel btPanel = new JPanel();
    private JPanel mainPanel = new JPanel(new CardLayout());
    CardLayout cl;
    CalScenario calcFrame = null;
    public HomePage() {
       setTitle("Test Kit");
       setSize( 1008,399);
       setBackground( Color.gray );
       setResizable(false);
       Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
       Rectangle window = getBounds();
       setLocation((screen.width - window.width) / 2, (screen.height - window.height) / 2);
       setVisible(true);
        homePanel.setLayout(new BorderLayout());
        headPanel.setPreferredSize(new Dimension(1008,153));
        label = new JLabel("Main menu");
        headPanel.add(label);
        headPanel.setBackground(Color.CYAN);
        ImageIcon icon = new ImageIcon("images/slash.gif");
        JLabel imglabel = new JLabel();
        imglabel.setIcon(icon);
        headPanel.add(label);
        this.getContentPane().add(headPanel);
        btPanel.setBackground(Color.ORANGE);
        cmdClick = new JButton("Click here");
        btPanel.add(cmdClick);
        cmdClick.addActionListener(this);
        homePanel.add("North",headPanel);
        homePanel.add("West",btPanel);
        calcFrame = new CalScenario(mainPanel);
        mainPanel.add(homePanel, "HomePanel");
        mainPanel.add(calcFrame, "CalcFrame");
        cl = (CardLayout) (mainPanel.getLayout());
        add(mainPanel);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    public void actionPerformed(ActionEvent source) {
      if (source.getSource() == (JButton) cmdClick) {
            cl.show(mainPanel, "CalcFrame");
    public static void main( String args[]) {
         HomePage homeFrame = new HomePage();
         homeFrame.setVisible(true);
}

Resizing JFrame on button click to show an image on the JFrame

Dear All,
I have a JFrame which has an empty label. On button click I want to set an icon for the label and want the JFrame to be resized to show that icon. I am using frame.pack() and I am not using any other sizing function. The code that I have right now, prints the image on the panel, but does not resize the frame to show the image. Pleae could someone help.package gui;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
public class ComponentDemo extends JPanel implements ActionListener,
ItemListener, MouseListener, KeyListener {
     private JTextArea textarea;
     private JButton button;
     private final static String newline = "\n";
     private JLabel imageIcon;
     public ComponentDemo() {
          button = new JButton("JButton welcomes you to CO2001");
          button.addActionListener(this);
          add(button);
          textarea = new JTextArea(10, 50);
          textarea.setEditable(false);
          addMouseListener(this);
          textarea.addKeyListener(this);
          JScrollPane scrollPane = new JScrollPane(textarea);
          add(scrollPane);
          imageIcon = new JLabel();
          add(imageIcon);
          setBackground(Color.pink);
          new JScrollPane(this);
      * Create the GUI and show it. For thread safety, this method should be
      * invoked from the event-dispatching thread.
     private static void createAndShowGUI() {
          // Create and set up the window.
          JFrame frame = new JFrame("Simple FrameDemo");
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
          frame.setLocation(700, 200);
          // get the content pane and set the background colour;
          frame.add(new ComponentDemo());
     //     frame.setSize(screenSize);
          // frame.getContentPane().setBackground(Color.cyan);
          // Display the window.
          frame.pack();
          frame.setVisible(true);
          frame.setResizable(true);
     public static void main(String[] args) {
          // Schedule a job for the event-dispatching thread:
          // creating and showing this application's GUI.
          javax.swing.SwingUtilities.invokeLater(new Runnable() {
               public void run() {
                    createAndShowGUI();
     @Override
     public void actionPerformed(ActionEvent e) {
          // TODO Auto-generated method stub
          if (e.getSource() instanceof JButton) {
               // System.out.println(e.getSource());
               String text = ((JButton) e.getSource()).getText();
               textarea.append(text + newline);
               textarea.setBackground(Color.cyan);
               textarea.setForeground(Color.BLUE);
               textarea.setCaretPosition(textarea.getDocument().getLength());
               imageIcon.setIcon(createImageIcon("SwingingDuke.png",
               "Image to be displayed"));
     @Override
     public void itemStateChanged(ItemEvent arg0) {
          // TODO Auto-generated method stub
     @Override
     public void mouseClicked(MouseEvent arg0) {
          textarea.append("A Mouse click welcomes you to CO2001" + newline);
          textarea.setBackground(Color.green);
          textarea.setCaretPosition(textarea.getDocument().getLength());
     @Override
     public void mouseEntered(MouseEvent arg0) {
          // TODO Auto-generated method stub
     @Override
     public void mouseExited(MouseEvent arg0) {
          // TODO Auto-generated method stub
     @Override
     public void mousePressed(MouseEvent arg0) {
          // TODO Auto-generated method stub
     @Override
     public void mouseReleased(MouseEvent arg0) {
          // TODO Auto-generated method stub
     @Override
     public void keyPressed(KeyEvent e) {
          System.out.println(e.getKeyChar());
          textarea.append("The key " + e.getKeyChar()
                    + " click welcomes you to CO2001" + newline);
          textarea.setBackground(Color.YELLOW);
          textarea.setFont(new Font("Arial", Font.ITALIC, 16));
          textarea.setCaretPosition(textarea.getDocument().getLength());
     @Override
     public void keyReleased(KeyEvent e) {
          System.out.println(e.getKeyChar());
          // textarea.append("The key "+
          // e.getKeyChar()+" click welcomes you to CO2001" + newline);
          // textarea.setBackground(Color.green);
          // textarea.setCaretPosition(textarea.getDocument().getLength());
     @Override
     public void keyTyped(KeyEvent e) {
          // TODO Auto-generated method stub
          System.out.println(e.getKeyChar());
          // textarea.append("The key "+
          // e.getKeyChar()+" click welcomes you to CO2001" + newline);
          // textarea.setBackground(Color.blue);
          // textarea.setCaretPosition(textarea.getDocument().getLength());
     /** Returns an ImageIcon, or null if the path was invalid. */
     protected ImageIcon createImageIcon(String path, String description) {
          java.net.URL imgURL = getClass().getResource(path);
          if (imgURL != null) {
               System.out.println("found");
               return new ImageIcon(imgURL, description);
          } else {
               System.err.println("Couldn't find file: " + path);
               return null;
}

myJPanel.setPerferredSize(new Dimension(new_width, new_hight));
myJFrame.pack();

Copy and paste a image to the clipboard

Hi,
Is there anybody who knows how to copy and paste an image to the clipboard in jdk 1.3.0.
I want make a image copy of my app like this (Panel):
Image image = (Image)this.createImage(this.getWidth(), this.getHeight());
Graphics g = image.getGraphics();
this.paint(g);
BufferedImage bufImage = (BufferedImage)image;
Now i will send this bufImage or the image to the clipboard.
How will it works?
Thanks a lot.

Hi,
I m having similar type of problem but with JPanel not with image. i m able to copy paste a JPanel using same clipboard but i want some more operations like after zoomin my JPanel , i want that now if i copy the image of Jpanel it should be the copy of original size of JPanel not the zoomed one but in my application it is showing the blank picture
for zoom fit size of JPanel its working ok.
please advice me what should i do

Image in the JPanel

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