Błąd ze znalezieniem pliku tekstowego w projekcie

Tak jak w temacie. Napisałem program:

package coursework2;

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.Scanner;

import javax.swing.JOptionPane;

public class coursework2

{
	public static void main(String[] args)throws FileNotFoundException
	{
		Scanner Readin = new Scanner(new FileReader("Textfile.txt"));
		int ShipLenght;
		int ShipWidth;
		int ShipHeight;
		int ContainerLenght;
		int ContainerWidth;
		int ContainerHeight;
		int ContainerWeight;
		int MaxWeight;
		int ContainerVolume;
		int CargoHoldVolume;
		int ShipWeight;
		
		
		ShipLenght = Readin.nextInt();
		ShipWidth = Readin.nextInt();
		ShipHeight = Readin.nextInt();
		ContainerLenght = Readin.nextInt();
		ContainerWidth = Readin.nextInt();
		ContainerHeight = Readin.nextInt();
		ContainerWeight = Readin.nextInt();
		MaxWeight = Readin.nextInt();
		
	
	JOptionPane.showMessageDialog(null, "Lenght of the Cargo hold is " +ShipLenght + "\nWidth of the Cargo hold is " + ShipWidth + "\nHeight of the Cargo hold is " + ShipHeight + "\nLenght of the container is " + ContainerLenght + "\nWidth of the container is " + ContainerWidth + "\nHeight of the container is " + ContainerHeight + "\nWeight of the container is " + ContainerWeight + "\nMaximmum weight of the Cargo is " + MaxWeight, "Ship Info", JOptionPane.INFORMATION_MESSAGE);
	
	Readin.close();
	
	ContainerVolume = (ContainerLenght * ContainerWidth * ContainerHeight);
	CargoHoldVolume = (ShipLenght * ShipWidth * ShipHeight);
	ShipWeight = (CargoHoldVolume/ContainerVolume)* ContainerWeight;
	JOptionPane.showMessageDialog(null,"Maximum numbers of containers on the ship is " + (CargoHoldVolume/ContainerVolume),"Cargo Hold details", JOptionPane.INFORMATION_MESSAGE);
	
	if (ShipWeight > MaxWeight)
	{
		JOptionPane.showMessageDialog(null,"The ship is overweight", null, JOptionPane.ERROR_MESSAGE);
	}
	else if (ShipWeight == MaxWeight)
	{
		JOptionPane.showMessageDialog(null,"Weight of Cargo ship is legal", null, JOptionPane.WARNING_MESSAGE, null);
	}
	
	}
}

Wychodzi mi owy error:
http://scr.hu/1x9c/kkta8

Problem w tym, że textfile znajduje się w tym samym folderze co projekt i ma prawidłową nazwę. Jakieś rady?

Umieść plik we właściwym miejscu, obok folderu coursework2.