cannot find symbol error

[sumedha vangury]

hi friends i am getting the error cannot find symbol for the code below,just cant figure out where is the problem,can someone please help me out asap..

 public void startPrelucrare(String sursa,Interface g){
        Photo img = new Photo();
        img.loadImage(sursa);
        img.start1(); 
    }

C:\dct>javac Interface.java
Interface.java:256: error: cannot find symbol
Photo img = new Photo();
^
symbol: class Photo
location: class Interface

Hope to get a solution very soon..thankyou very much:)

[Vivek SharmaJi]

Please check the Photo class is visible to your this class. Please paste the complete code. Thanks!

[sumedha vangury]

thanks for the quick response,but i still dint get how to resolve the error

  
import java.io.*;
import java.awt.Color;
import java.awt.color.ColorSpace;
import java.awt.image.BufferedImage;
import java.awt.image.ColorConvertOp;
import java.io.File;
import java.io.IOException;
import java.util.Date;
import java.util.Random;
import java.io.BufferedInputStream;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import static java.lang.Math.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class Interface extends JFrame implements ActionListener{
    public Interface() {
        initComponents();
        this.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
    }
     
    static String sursa=null;
    public String status="Status";
 
    private void initComponents() {
        // JFormDesigner - Component initialization - DO NOT MODIFY  //GEN-BEGIN:initComponents
        // Generated using JFormDesigner Evaluation license - aa aa
        menuBar1 = new JMenuBar();
        menu1 = new JMenu();
        menuItem2 = new JMenuItem();
        menuItem1 = new JMenuItem();
        menuItem3 = new JMenuItem();
        menuItem4 = new JMenuItem();
        menu2 = new JMenu();
        menuItem5 = new JMenuItem();
        menuItem6 = new JMenuItem();
        label1 = new JLabel();
        panel1 = new JPanel();
        panel2 = new JPanel();
        button1 = new JButton();
        button2 = new JButton();
        button4 = new JButton();
        label = new JLabel();
        labe = new JLabel();
        label0 = new JLabel();
         
        //======== this ========
        setTitle("Watermark program");
        setResizable(false);
        Container contentPane = getContentPane();
        contentPane.setLayout(new BorderLayout());
 
        //======== menuBar1 ========
        {
 
            //======== menu1 ========
            {
                menu1.setText("File");
                 
                //---- menuItem1 ----
                menuItem1.setText("Browse");
                menu1.add(menuItem1);
                menuItem1.addActionListener(this);
 
                //---- menuItem2 ----
                menuItem2.setText("DCT");
                menu1.add(menuItem2);   
                menuItem2.addActionListener(this);
 
                //---- menuItem3 ----
                menuItem3.setText("DWT");
                menu1.add(menuItem3);
                menu1.addSeparator();
                menuItem3.addActionListener(this);
 
                //---- menuItem4 ----
                menuItem4.setText("Exit");
                menu1.add(menuItem4);
                menuItem4.addActionListener(this);
            }
            menuBar1.add(menu1);
 
            //======== menu2 ========
            {
                menu2.setText("Help");
 
                //---- menuItem5 ----
                menuItem5.setText("About");
                menu2.add(menuItem5);
                menuItem5.addActionListener(this);
                menu2.addSeparator();
 
                //---- menuItem6 ----
                menuItem6.setText("Manual");
                menuItem6.addActionListener(this);
                menu2.add(menuItem6);
            }
            menuBar1.add(menu2);
        }
        setJMenuBar(menuBar1);
 
        //---- label1 ----
        label1.setText(status);
        label1.setBackground(Color.white);
        contentPane.add(label1, BorderLayout.SOUTH);
 
        //======== panel1 ========
        {
            // JFormDesigner evaluation mark

            panel1.setLayout(new FlowLayout());
 
            //---- button1 ----
            button1.setText("Browse");
            button1.addActionListener(this);
            panel1.add(button1);
             
 
            //---- button2 ----
            button2.setText("DCT");
            button2.addActionListener(this);
            panel1.add(button2);
 
            //---- button4 ----
            button4.setText("DWT");
            button4.addActionListener(this);
            panel1.add(button4);
             
             
             
            //---- panel2 imaginea dct
            panel2.setBackground(Color.LIGHT_GRAY);
            panel2.add(label0);
            panel2.add(label);
            panel2.add(labe);
        }
         
        contentPane.add(panel1, BorderLayout.NORTH);
        contentPane.add(panel2, BorderLayout.CENTER);
         
        pack();
        setLocationRelativeTo(null);
        // JFormDesigner - End of component initialization  //GEN-END:initComponents
    }
 
    // JFormDesigner - Variables declaration - DO NOT MODIFY  //GEN-BEGIN:variables
    // Generated using JFormDesigner Evaluation license - aa aa
    private JMenuBar menuBar1;
    private JMenu menu1;
    private JMenuItem menuItem2;
    private JMenuItem menuItem1;
    private JMenuItem menuItem3;
    private JMenuItem menuItem4;
    private JMenu menu2;
    private JMenuItem menuItem5;
    private JMenuItem menuItem6;
    public JLabel label1;
    public JLabel label;
    public JLabel labe;
    public JLabel label0;
    private JPanel panel1;
    public JPanel panel2;
    private JButton button1;
    private JButton button2;
    private JButton button4;
    public JProgressBar progress;
    // JFormDesigner - End of variables declaration  //GEN-END:variables
     
    // 
    public void actionPerformed(ActionEvent e) {
        Object eveniment = e.getSource();
        String command = e.getActionCommand();
        if (command.equals("Browse")) 
        {               
            FileDialog fd = new FileDialog(this, "Browse", FileDialog.LOAD);
            //stabilim directorul curent
            fd.setDirectory(".");       
 
            //specificam filtrul
            fd.setFilenameFilter(new FilenameFilter() {
                public boolean accept(File dir, String numeFis) {
                    return (numeFis.endsWith(".jpg"));
                }
            });
        fd.show(); 
         
        if (fd.getFile() != null)
                setSursa(fd.getDirectory()+fd.getFile());
 
        if (label != null){
            label.setIcon(null);
            labe.setIcon(null);
        }
        System.out.println(fd.getFile());
        if (fd.getFile() == null && sursa==null)
            label1.setText("Incarcati imaginea ");
        else{
            afis(sursa, 0);
            label1.setText("Imagine loaded! --> "+fd.getFile());
            }
        }
         
        if (command.equals("DCT")) 
        {               
            //System.out.println("Sursa: " + sursa);
            if (sursa==null)
                label1.setText("Load the image!");
            else{
                startPrelucrare(sursa, this);
                }
        }// if DCT
         
        if (command.equals("DWT")){             
            //System.out.println("Sursa: " + sursa);
            if (sursa==null)
                 label1.setText("Load the image!");
            else
                 startPrelucrareDWT(sursa, this);
                 
        }
         
        if (command.equals("Exit")) 
            System.exit(0);
             
        if (command.equals("About")) {      
            JFrame frame = new JFrame();
            frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
 
            JOptionPane.showMessageDialog(frame,
                    "Program de watermark folosind DCT si DWT \n\nAutori: \n Gheorghinca Vlad" , 
                    "Message",JOptionPane.INFORMATION_MESSAGE);
        }// if About
         
        if (command.equals("Manual"))   {                   
            String file = "./manual.pdf";
            try {
                Runtime.getRuntime().exec("rundll32 url.dll,FileProtocolHandler " + file );
                System.out.println("file:" + file);
            } catch (IOException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
        }
    }
     
    public void startPrelucrare(String sursa,Interface g){
        Photo img = new Photo();
        img.loadImage(sursa);
        img.start1(); 
    }
 
    public void startPrelucrareDWT(String sursa,Interface g){
        DwtConv img2 = new DwtConv();
        img2.setInterf(this);
        img2.setSursa_iomagine(sursa);
        img2.MakeDwtWatermark(sursa, sursa+"watermark"+".jpg");
    }
     
    public ImageIcon scale(Image src, double scale) {
            int w = (int)(scale*src.getWidth(this));
            int h = (int)(scale*src.getHeight(this));
            int type = BufferedImage.TYPE_INT_RGB;
            BufferedImage dst = new BufferedImage(w, h, type);
            Graphics2D g2 = dst.createGraphics();
            g2.drawImage(src, 0, 0, w, h, this);
            g2.dispose();
            return new ImageIcon(dst);
        }
 
    public String getSursa() {
        return sursa;
    }
    public void setSursa(String sursa) {
        this.sursa = sursa;
    }
 
    public String getStatus() {
        return status;
    }
    public void setStatus(String status) {
        this.status = status;
    }
 
    public void afis(String sursaIomagine, int a) {
         
        if (a == 2){
            ImageIcon icon = new ImageIcon(sursaIomagine);
            labe.setIcon(scale(icon.getImage(), 0.5));  
        }
         
        if (a == 1){
            ImageIcon icon = new ImageIcon(sursaIomagine);
            label.setIcon(scale(icon.getImage(), 0.5));
        }
        if (a == 0) {
            ImageIcon icon1 = new ImageIcon(sursaIomagine);
            label0.setIcon(scale(icon1.getImage(), 0.5));
        }
        pack();
    }
}

[Ulf Dittmer]

As Vivek said, your code uses a class called "Photo", and that seems not to be available. Where is it?