JDialog box with room to type in a file name or browse files

Question

Can anyone please tell me how to get a box with the message please choose a file to open, a strip for the user to type a file name into, with a browse button to the right for finding files, and then an ok button underneath.
Thanks tonnes

Answer 1

Here's the whole function in its current state:
public File getOutputFile() throws IOException {
int result = chooser.showSaveDialog(FileInputFrame.this);
if(result == JFileChooser.APPROVE_OPTION)
{ String fileName = new String();
System.out.println(chooser.getSelectedFile());
fileName = chooser.getSelectedFile().getAbsolutePath();
System.out.println(fileName);
File aFile = new File(fileName);
return aFile;
else
return null;
I'm using JBuilder, so it always says which line the exception is on, and it is always thrown at the first line where chooser.getSelectedFile() is dereferenced, so I'm pretty sure that it is returning null for whatever reason.
I have the default directory set to "~", so it comes up with a listing of everything in my home directory. Then I just type in a name that does not appear on that list, and poof, exceptions galore.
OK, here's a really wierd thing. If I use the name of a file that already exists in my home directory but save it in some random subdirectory, there is no problem. But, if I use the name of a file that exists nowhere in that same subdirectory, I get the exception.
I wonder if it is a system permissions problem, as I do not have admin permissions on this machine, although everything is running out of my home directory, so I should have write permissions. I wonder also if it could be system dependent-- I'm running redhat. I don't have a lot of experience trying to interface with the os/file system, that's why I was so happy to find the JFileChooser class in the first place.
Thanks for your thoughts on this!