How to filter file type in FileDialog?

java filedialog
PinkiePie-Z picture PinkiePie-Z · Sep 24, 2012 · Viewed 24.2k times · Source

I am using FileDialog for saving and loading in a Java program.

How can I filter the dropdown list to specify the file type as "JPG" or "JPEG" etc. ?

I have tried the following code, but it seems to have no effect.

Are there any other ways of doing this ?

public void actionPerformed(ActionEvent e) {
            FileDialog saveFileDialog = new FileDialog(new Frame(), "Save", FileDialog.SAVE);

            saveFileDialog.setFilenameFilter(new FilenameFilter(){
                @Override
                public boolean accept(File dir, String name) {
                    return name.endsWith(".jpg") || name.endsWith(".jpeg");
                }
            });
            saveFileDialog.setFile("Untitled.jpg");
            saveFileDialog.setVisible(true);
        }

Answer

swemon picture swemon · Sep 24, 2012

The answer is simple. You can use 

 saveFileDialog.setFile("*.jpg;*.jpeg");

No need to use setFilenameFilter method. You can add as many file type as you which.

Solving of this problem can be found in huxhorn' s comment in Bug ID: 4031440 FileDialog doesn't call FilenameFilter.accept().

public void actionPerformed(ActionEvent e) {
            FileDialog saveFileDialog = new FileDialog(new Frame(), "Save", FileDialog.SAVE);
            saveFileDialog.setFile("*.jpg;*.jpeg");
            saveFileDialog.setVisible(true);
        }

Related questions

how to overwrite existing file Java

i want to overwriting file that i have saved before, my SaveAs code : public void SaveAs(){ judul = jTextJudul.getText(); s = area.getText(); if(s.length()>0){//jika s terisi try { dialog = new FileDialog(this,"Save File As",FileDialog.SAVE); dialog.…

Read More
Need FileDialog with a file type filter in Java

I have a JDialog with a button/textfield for the user to select a file. Here's the code: FileDialog chooser = new FileDialog(this, "Save As", FileDialog.SAVE ); String startDir = saveAsField.getText().substring( 0, saveAsField.getText().lastIndexOf('\\') ); chooser.setDirectory(startDir); …

Read More
How do I convert a String to an int in Java?

How can I convert a String to an int in Java? My String contains only numbers, and I want to return the number it represents. For example, given the string "1234" the result should be the number 1234.

Read More