List all '.java' files present in a directory. import java.io.*; public class FileExt { public static void main(String args[]) { try { String[] filesList; File dir = new File("."); filesList= dir.list(new FileFilter()); for (int i=0;i { System.out.println(filesList[i]); } } catch(Exception e){} } } class FileFilter implements FilenameFilter { public boolean accept(File dir, String name) { return (name.endsWith(".java")); } }