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

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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);
}

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 to add an image file to Oracle db?

Need help urgently....Anybody knows how to add an image file (example: jpg)into one of the fields in Oracle database??

This will do the job..
package forum;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import java.sql.*;
import oracle.jdbc.driver.*;
//import oracle.sql.*;
Wanneer een request.getInputStream wordt geconferteerd naar een "String" (zie later) dan ziet de output in tekstformaat er als volgt uit:
-----------------------------7d280152604f4 Content-Disposition: form-data; name="oploadfile"; filename="C:\WINNT\Profiles\mvo\Desktop\boodschap.txt" Content-Type: text/plain Deze boodschap dient te worden ge-insert in de database. -----------------------------7d280152604f4 Content-Disposition: form-data; name="StadID" 1234 -----------------------------7d280152604f4 Content-Disposition: form-data; name="SuccessPage" /forum/error.jsp -----------------------------7d280152604f4--
of opgesplitst
contentType........... multipart/form-data; boundary=---------------------------7d235ade00f0
filename.............. "C:\Documents and Settings\Administrator\Desktop\boodschap.txt"
MIME type............. text/plain
Wat in database moet.. Dit is de eigenlijke boodschap die moet worden ge-insert in de database.
Eind boundary......... -----------------------------7d235ade00f0 Content-Disposition: form-data; name="file1"; filename="" Content-Type: application/octet-stream -----------------------------7d235ade00f0--
We gaan achtereenvolgens:
1. Kijken of het van het "multipart/form-data" type is (uploaden) en strippen van eerste boundery.
1.a Geen "multipart/form-data" ? dan... error message
1.b Groter dan MAX_SIZE ?..dan .. error message
2. Filenaam van de te uploaden file uitlezen
3. Mimetype bepalen en bepalen in welke positie van de string het Mimetype ophoudt, cq waar te uploaden file begint
4. Bepalen waar eind boundery begint
5. De eigenlijke file uitlezen
6. Terug converteren naar bytes
public class WriteBlob extends HttpServlet {
public static final int MAX_SIZE = ParameterSettings.imageUpload;
String successMessage = "";
public void init(ServletConfig config) throws ServletException {
super.init(config);
* Process the HTTP Get request
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
DataInputStream in = null;
FileOutputStream fileOut= null;
PrintWriter out = response.getWriter();
int kb_size = 0;
boolean pass2 = true;
String message = "";
String responseRedirect = "/forum/uploaden.jsp?message="+" Uploaden geslaagd";
try
//get content type of client request
String contentType = request.getContentType();
// Start stap 1...content type is multipart/form-data
if(contentType != null && contentType.indexOf("multipart/form-data") != -1)
//open input stream
in = new DataInputStream(request.getInputStream());
//get length of content data
int formDataLength = request.getContentLength(); // totale lengte van de inputstream
//initieer een byte array om content data op te slaan
byte dataBytes[] = new byte[formDataLength];
//read file into byte array
int bytesRead = 0;
int totalBytesRead = 0;
int sizeCheck = 0;
while (totalBytesRead < formDataLength)
//kijken of de file niet te groot is
sizeCheck = totalBytesRead + in.available();
if (sizeCheck > MAX_SIZE)
pass2 = false;
message = "Sorry. U kunt slechts bestanden uploaden tot een grootte van 500KB";
responseRedirect = "/forum/uploaden.jsp?message="+message;
bytesRead = in.read(dataBytes, totalBytesRead,formDataLength);
totalBytesRead += bytesRead;
if (pass2==true)
kb_size = (int)(formDataLength/1024);
//create string from byte array for easy manipulation
String file = new String(dataBytes);
/*get boundary value (boundary is a unique string that separates content data)
contentType........... multipart/form-data; boundary=---------------------------7d235ade00f0
int lastIndex = contentType.lastIndexOf("=");
String boundary = contentType.substring(lastIndex+1, contentType.length());
// Stap 2.....bepaal de naam van de upload file
// filename.............. "C:\Documents and Settings\Administrator\Desktop\boodschap.txt"
String saveFile = file.substring(file.indexOf("filename=\"")+10);
saveFile = saveFile.substring(0,saveFile.indexOf("\n"));
saveFile = saveFile.substring(saveFile.lastIndexOf("\\")+1,saveFile.indexOf("\"")); //naam van de file...boodschap.txt
String saveFileName = saveFile;
// Stap 3..Bepaal MIME Type en de positie van eind mime type in string
voorbeeld: -----------------------------7d23d21220524 Content-Disposition: form-data; name="file0"; filename="C:\WINNT\Profiles\mvo\Desktop\z clob.txt" Content-Type: text/plain
String restant = "";
int pos; //position in upload file
// bijv .. filename="C:\Documents and Settings\Administrator\Desktop\boodschap.txt"
pos = file.indexOf("filename=\"");
//find position of content-disposition line
pos = file.indexOf("\n",pos)+1; // eing file naam + spatie
// onderstaand geeft bijv Content-Type: text/plain
restant = file.substring(pos,file.indexOf("\n",pos)-1);
restant = restant.substring(restant.indexOf(":")+2,restant.length()); // MIME type
String mimeType = restant;
//find position of eind content-type line
pos = file.indexOf("\n",pos)+1;
//find position of blank line
pos = file.indexOf("\n",pos)+1;
int start = pos;
// Stap 4 eind boundary
/*find the location of the next boundary marker (marking the end of the upload file data)*/
int boundaryLocation = file.indexOf(boundary,pos)-4; //waarom -4 ..? ziet er uit als linebreak spatie--boundary=-----------------------------7d21c9ae00f0
// Stap 5 en 6..de eigelijke te uploaden file in nieuwe byte file inserten
byte dataBytes2[] = new byte[boundaryLocation-start]; //declareren
for (int i=0;i<(boundaryLocation-start);i++) // inserten BELANGRIJK !!
dataBytes2=dataBytes[start+i];
String next_id = "0";
Statement statement = null;
Connection conn = null;
boolean pass = true;
ResultSet rs = null;
Statement stmt_empty = null;
oracle.sql.BLOB blb = null;
try
int vendor = DriverUtilities.ORACLE;
String username = ConnectionParams.userName;
String password = ConnectionParams.passWord;
String connStr = DriverUtilities.makeURL(vendor);
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
conn = DriverManager.getConnection(connStr,username, password);
if (conn==null){pass=false;}
} catch (Exception e){out.println("<P>" + "There was an error establishing a connection:");}
if (pass==true)
try
String seq_nextval ="select forum_blob_seq.nextval from dual";
statement = conn.createStatement();
ResultSet rset = statement.executeQuery(seq_nextval);
while (rset.next())
next_id = rset.getString(1);
if (next_id.equals("0"))
message = "Uploaden mislukt !...Er ging wat fout tijdens de interactie met de database";
responseRedirect = "/forum/uploaden.jsp?message="+message;
pass = false;
} catch (Exception e1) { out.println("Error blob1 : "+e1.toString()); };
} // end pass
if (pass==true)
try
Statement stmt2 = conn.createStatement();
String insert_empty_blob = "INSERT INTO test_blob(id "+
",filename "+
",mimetype "+
",kb) "+
"VALUES("+Integer.parseInt(next_id) +
",'"+saveFileName+"'"+
",'"+mimeType+"'"+
","+kb_size+")";
stmt2.executeQuery(insert_empty_blob);
conn.commit();
if (stmt2!= null) {stmt2.close();}else{stmt2.close();pass = false;}
} catch (Exception e2){
message = "Uploaden mislukt !...Er ging wat fout tijdens de interactie met de database";
responseRedirect = "/forum/uploaden.jsp?message="+message;
out.println("<P>" + "2. There was an error inserting mime type:");}
} //end pass
if (pass==true)
try
conn.setAutoCommit(false);
} catch (Exception e3) { pass = false; out.println("Error blob 3: "+e3.toString()); };
} //end pass
if (pass==true)
try
String Query_blob ="Select test_blob FROM test_blob where id="+next_id+" FOR UPDATE";
stmt_empty = conn.createStatement();
rs=stmt_empty.executeQuery(Query_blob);
} catch (Exception e4) {
pass = false;
out.println("Error blob 4: "+e4.toString());
message = "Uploaden mislukt !...Er ging wat fout tijdens de interactie met de database";
responseRedirect = "/forum/uploaden.jsp?message="+message;};
} //end pass
if (pass==true)
try
                         if (rs.next())
                         blb = ((OracleResultSet)rs).getBLOB(1);
                    OutputStream stmBlobStream = blb.getBinaryOutputStream();
                         try {
                              int iSize = blb.getBufferSize();
                         byte[] byBuffer = new byte[iSize];
                         int iLength = -1;
ByteArrayInputStream stmByteIn = new ByteArrayInputStream(dataBytes2);
                              try {
// while ( (iLength = in.read(byBuffer, 0,      iSize)) != -1 )
while ( (iLength = stmByteIn.read(byBuffer, 0,      iSize)) != -1 )
                                   stmBlobStream.write(byBuffer, 0, iLength);
                                   stmBlobStream.flush();
                                   } // end while
} catch (Exception e5) {
pass=false;
out.println("Error blob 5: "+e5.toString());
message = "Uploaden mislukt !...Er ging wat fout tijdens de interactie met de database";
responseRedirect = "/forum/uploaden.jsp?message="+message; }
                              finally { conn.commit();     }
} catch (Exception e6) { out.println("Error blob 6: "+e6.toString()); };
                         } //end if rs.next()
                         else {      throw new SQLException("Could not locate message record in database."); }
} catch (Exception e7) { out.println("Error blob : "+e7.toString()); };
} // end pass
} // end pass2
else //request is not multipart/form-data
message = "Uploaden mislukt !...Gegevens niet verstuurd via multipart/form-data.";
responseRedirect = "/forum/error.jsp?message="+message;
out.println("Request not multipart/form-data.");
catch(Exception e)
try
//print error message to standard out
out.println("Error in doPost: " + e);
//send error message to client
out.println("An unexpected error has occurred.");
out.println("Error description: " + e);
}catch (Exception f) {}
response.sendRedirect(responseRedirect);
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
doPost(request,response);
Regards
Martin

How to add an image to combo box model in java

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[email protected]

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Hi,
First be aware that before posting this, I digged into Google but could not find a solution.
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Thanks, it works perfectly. It's a really smart way of fixing the problem too :)
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Chilly Charly (aka CC)
E-List Master - Kudos glutton - Press the yellow button on the left...
Attachments:
Slide with Arrow.vi ‏13 KB

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How can add a images file to anothere image file

hi
Requirement is: i have one image in data base , i is show to user in my application
know we want add another image file in to a current image file (just append)
at end .
i was tried with following code below
i was read the previous(Old) image content from the data base and placed into c:\\ReArchive\\test_content.tiff
ResultSet rs2=dbBean.getSQLRows("select binarycontent from ContentVersion where contentindex="+IndexValue+"");
byte[] bTempData_content=new byte[65536];
while(rs2.next()){
File f = new File("c:\\ReArchive\\test_content.tiff");
f_content.delete();
f_content.createNewFile();
FileOutputStream dest_contentVersion = new FileOutputStream(f_content);
while(rs2.next()){
InputStream is_content=rs2.getBinaryStream("Binarycontent");
nActualRead_content=is.read(bTempData_content,0,65536);
while(nActualRead_content>0)
dest_contentVersion.write(bTempData_content,0,nActualRead_content);
nActualRead_content=is.read(bTempData_content,0,65536);
Then i was took New image file from data base and place in to c:\\ReArchive\\test.tiff");
int nActualRead=0;
ResultSet rs1=dbBean.getSQLRows("select * from Object_Store where Barcode_ID='"+strBar_Code+"'");
byte[] bTempData=new byte[65536];
File f = new File("c:\\ReArchive\\test.tiff");
f.delete();
f.createNewFile();
FileOutputStream dest = new FileOutputStream(f);
while(rs1.next()){
InputStream is=rs1.getBinaryStream("Obj_Content");
nActualRead=is.read(bTempData,0,65536);
while(nActualRead>0)
dest.write(bTempData,0,nActualRead);
nActualRead=is.read(bTempData,0,65536);
then i tried add two images by converting InputStream to String and i am trying add to images
but i was failed ,i think i am in not correct way , how can i solve this problem
thanks advance
gss

Don't you think it would be a good idea to tell us how you failed?

How to add an image to a JPanel ?

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