Appending the file type to a file in Java using JFileChooser

java jfilechooser file-type
Kingteeb picture Kingteeb · May 6, 2012 · Viewed 9.8k times · Source

I'm trying to save an image using a JFileChooser. I only want the user to be able to save the image as a jpg. However if they don't type .jpg it wont be saved as an image. Is it possible to somehow append ".jpg" to the end of the file? 

File file = chooser.getSelectedFile() + ".jpg";

Doesn't work as I'm adding a string to a file.

Answer

Jeffrey picture Jeffrey · May 6, 2012

Why not convert the File to a String and create a new File when you're done?

File f = chooser.getSelectedFile();
String filePath = f.getAbsolutePath();
if(!filePath.endsWith(".jpg")) {
    f = new File(filePath + ".jpg");
}

Remember, you don't need to add the .jpg if it's already there.

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