How to add file filter for JFileChooser dialog?
In Swing, we can do that by using methodaddChoosableFileFilter(FileFilter filter) of the class JFileChooser. boolean accept (File f): returns true if the file f satisfies a filter condition. The condition here is the extension of the file. String getDescription (): returns a description which is displayed in the dialog’s Files of type section.
How does the public JFileChooser in Java work?
JFileChooser public JFileChooser(File currentDirectory) Constructs a JFileChooser using the given File as the path. Passing in a null file causes the file chooser to point to the user’s default directory. This default depends on the operating system.
When to return true or false in JFileChooser?
Returns true if hidden files are not shown in the file chooser; otherwise, returns false. Convenience call that determines if files are selectable based on the current file selection mode. Returns true if multiple files can be selected. Returns true if the file (directory) can be visited.
How does JFileChooser enforce the file name?
As you’ve noticed, JFileChooser doesn’t enforce the FileFilter on a save. It will grey-out the existing non-XML file in the dialog it displays, but that’s it. To enforce the filename, you have to do all the work.
Which is part of Java Swing is JFileChooser?
JFileChooser is a part of java Swing package. The java Swing package is part of JavaTM Foundation Classes (JFC) . JFC contains many features that help in building graphical user interface in java . Java Swing provides components such as buttons, panels, dialogs, etc .
When to use the constructor JFileChooser ( file ) in Java?
That process results into a File type. In other words we are using the constructor JFileChooser (File) while taking into account the FileSystemView. Example of how to use the JFileChooser to get the absolute path for the file the user wants to open or to get the location where the user wants to save the file: