How to import Image file

[Yatin Shah]

Hello,

I have to import image file (.jpg). My code is working for text file. I am not getting why it's not working for image. Please have a look following code to import text file.

  //this opens a file via the JFileChooser, returns file name & location
  public String SelectFile() {
  
    //variable declaration
    String path = null;
  
    //this creates a JFileChooser gui in order to select a file
    JFileChooser jfc = new JFileChooser();
    jfc.setFileFilter(fnef);
    int buttonClicked = jfc.showOpenDialog(new JLabel("Open File"));
    
    //this checks which button was pressed on the JFileChooser GUI
    if (buttonClicked == JFileChooser.APPROVE_OPTION) {
      path = "" + jfc.getCurrentDirectory() + "\\"
               + (jfc.getSelectedFile().getName()).toLowerCase();
    }
    return path;
  }

  //this reads the contents of the text area to a text file
  public void txtRead(String file) {
   
   //this buffers, then reads the file
    StringBuffer s = new StringBuffer();
    try {
      BufferedReader input = new BufferedReader(new FileReader(file));
      try {
        String line = "";
        while ((line = input.readLine()) != null) {s.append(line + "\n");}
      }
      finally {input.close();}
     }
     catch (Exception x){JOptionPane.showMessageDialog(null, "File not found!", "Error", JOptionPane.ERROR_MESSAGE);}
    
   //this display the text
 //  originaltxt.setText(s.toString());
  }

But my code for image file is not working which are as follow:

  //this opens a file via the JFileChooser, returns file name & location
  public String SelectFile() {
  
    //variable declaration
    String path = null;
  
    //this creates a JFileChooser gui in order to select a file
    JFileChooser jfc = new JFileChooser();
    jfc.setFileFilter(fnef);
    int buttonClicked = jfc.showOpenDialog(new JLabel("Open File"));
    
    //this checks which button was pressed on the JFileChooser GUI
    if (buttonClicked == JFileChooser.APPROVE_OPTION) {
      path = "" + jfc.getCurrentDirectory() + "\\"
               + (jfc.getSelectedFile().getName()).toLowerCase();
    }
    return path;
  }
//this reads the contents of the text area to a text file
  public void imgRead() {
   
   //this buffers, then reads the file
    BufferedImage image;    
    try 
    {
      image = ImageIO.read(new File());
      JLabel imgLabel = new JLabel(new ImageIcon(image));
      originalPan.add(imgLabel);
    }
     catch (Exception x){JOptionPane.showMessageDialog(null, "File not found!", "Error", JOptionPane.ERROR_MESSAGE);}
   
    //JLabel imgLabel = new JLabel(new ImageIcon(image));
     originalPan.add(imgLabel);
  }

After importing I have to divides in 5 part and regenerate choosing any three part. Any one can help me?


Thanking you

[Paul Clapham]

You go to great trouble to display a JFileChooser and allow the user to select a file. But then you don't pay any attention to what file the user selected, and instead you create an image from no file at all:

image = ImageIO.read(new File());

You'll need to provide the path which the user selected here.

Secondly, you go to far too much trouble with that JFileChooser code. Here's your code which is complicated and doesn't always work properly:

if (buttonClicked == JFileChooser.APPROVE_OPTION) {  
  path = "" + jfc.getCurrentDirectory() + "\\"  
          + (jfc.getSelectedFile().getName()).toLowerCase();  
}

That is only going to work on Windows systems (other systems use / to separate entries in the file path) and, more importantly, it will only work if the user chose a file from the file chooser's default directory. (At least I think that's right -- the documentation doesn't say what the "current directory" of a JFileChooser is.) Here's some code which is both simpler and more reliable:

if (buttonClicked == JFileChooser.APPROVE_OPTION) {  
  path = jfs.getSelectedFile().getPath();
}

You don't need to change the path to all lower-case either. That's another thing which is Windows-only and will fail on other operating systems, but you don't even need to do it on Windows systems.

[Yatin Shah]

Hi,

Still I am not able to import any image on pane using FileChooser. Please help me.


Thanking You

[Lester Burnham]

Yatin Shah wrote:Still I am not able to import any image on pane using FileChooser.

What does that mean? How did you change your code?