Calling System to read a file (error)

import java.io.File;
import java.io.IOException;
import java.util.Scanner;

public class Question4
{
    public static void main(String[] args) throws IOException
    {
        Scanner keyboard = new Scanner(System.in);
        System.out.println("Enter filename");
        String filename = keyboard.nextLine();

        File test1 = new File("test1.txt");
        Scanner inputFile = new Scanner(test1);

        while (inputFile.hasNext())
        {
            String file = inputFile.nextLine();
            System.out.println(file);
        }
        inputFile.close();
    }
}