Core Web Programming, Second Edition

13.11. The FileDialog Class

A FileDialog is a type of modal dialog that is used to load or save files. Use FileDialog with applications; normal applets cannot access the local disk. Although a FileDialog is technically a Container, it cannot hold any other components and has no layout manager. Here are the basic steps for creating and using a FileDialog.

// Make the FileDialog.
FileDialog fileLoader =
  new FileDialog(frame, title, FileDialog.LOAD);
FileDialog fileSaver =
  new FileDialog(frame, title, FileDialog.SAVE);
//Set a default file or file type.
fileLoader.setFile("*.txt");
// Pop up the FileDialog.
fileLoader.show();
// Look up the filename chosen.
String filename = fileLoader.getFile();

Example: Displaying Files in a TextArea

Listing ...