import java.io.File;
import java.io.FileFilter;

public class World
{
  static void world()
  {
    String classpathVersion = System.getProperty("gnu.classpath.version");
    System.out.println ("vm: " + System.getProperty("java.vm.name") +
			(classpathVersion != null
			 ? " running on GNU Classpath "
			   + classpathVersion : ""));
    System.out.println ("version: " + System.getProperty("java.vm.version"));
    System.out.println ("vendor: " + System.getProperty("java.vm.vendor"));
    System.out.println ("os: " + System.getProperty("os.name"));

    FileFilter ff = new FileFilter()
    {
      int x;
      int y;
           
      public boolean accept(File pathname)
      {
        // and here?
        // or here?
        return  (pathname.getName().toUpperCase().endsWith(".JAVA"));
        /* and what about
           ...
           ..
           ?*/
      }

      int a;
      int b;
      int c;

      public void ahoj()
      {
        a=b+c;
        c=a-b;
	return;
      }
    };

    ff.accept(new File("dfds fds"));
    System.out.println ("arch: " + System.getProperty("os.arch"));
  }
}