не очень понимаю
в чем ошибка
package com.javarush.task.task18.task1814;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
/*
UnsupportedFileName
*/
public class TxtInputStream extends FileInputStream {
public TxtInputStream(String fileName) throws IOException, UnsupportedFileNameException {
super(fileName);
if(fileName.endsWith(".txt")){
super.close();
throw new UnsupportedFileNameException();
}
}
public static void main(String[] args) {
}
}