Set file type in JFileChooser

Complete source code below will show you, how set file type that should be display in a JFileChooser. Source code below will display all directories and text files only.

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COMPLETE SOURCE CODE FOR : SetJFileChooserFileType.java
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import javax.swing.filechooser.FileFilter;

import javax.swing.JFileChooser;

import java.io.File;

public class SetJFileChooserFileType
{
public SetJFileChooserFileType()
{
 //Create a file chooser from JFileChooser
 JFileChooser fileChooser=new JFileChooser();

 //Set file type that should be display by set JFileChooser's file filter
 fileChooser.setFileFilter(new TypeOfFile());

 //Show JFileChooser
 int a=fileChooser.showDialog(null,"Open Text File");
}

//Class TypeOfFile 
class TypeOfFile extends FileFilter
{
 //Type of file that should be display in JFileChooser will be set here
 //We choose to display only directory and text file
 public boolean accept(File f)
 {
  return f.isDirectory()||f.getName().toLowerCase().endsWith(".txt");
 }

 //Set description for the type of file that should be display
 public String getDescription()
 {
  return ".text files";
 }
}

public static void main(String[]args)
{
 SetJFileChooserFileType sjfcft=new SetJFileChooserFileType();
}
}

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JUST COMPILE AND EXECUTE IT
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