JFileChooser.isAcceptAllFileFilterUsed() has the following syntax.
public boolean isAcceptAllFileFilterUsed()
In the following code shows how to use JFileChooser.isAcceptAllFileFilterUsed() method.
//from www. j a v a 2 s . co m import javax.swing.JFileChooser; public class Main { public static void main(String[] argv) { JFileChooser chooser = new JFileChooser(); boolean enabled = chooser.isAcceptAllFileFilterUsed(); chooser.showOpenDialog(null); } }