import java.io.*;

public class OnlyExt implements FilenameFilter {
	String ext;
	String base;
	public OnlyExt(String base, String ext) {
		this.ext = "." + ext;
		this.base = base;
	}
	
	public boolean accept (File dir, String name) {
		return (name.startsWith(base) && name.endsWith(ext) );
	}
}