java FileNotFoundException wont locate a file in the same project

Question

I am writing a program for my comp sci class, andI keep getting the same error.

Exception in thread "main" java.io.FileNotFoundException: data.txt (No such file or directory)
    at java.io.FileInputStream.open(Native Method)
    at java.io.FileInputStream.<init>(FileInputStream.java:120)
    at java.util.Scanner.<init>(Scanner.java:636)
    at Search.main(Search.java:18)

Here is the beginning of my code:

import java.io.File;
import java.util.ArrayList;
import java.util.Scanner;
import java.io.IOException;
public class Search{
    public static void main(String[] args)throws IOException{
        Scanner inData = new Scanner(new File("data.txt"));

        String data=inData.nextLine();
        String[] arr = data.split(" ");   

        while(inData.hasNext()){
            String search=inData.nextLine();
            int len=search.length();
            ArrayList<String> result = new ArrayList<String>();

I have a text file in the same Java Project, so I'm not sure what the problem is and I've tried moving the location of the file around but nothing is working.

Create a source folder as described in [this post](http://stackoverflow.com/a/9278270/1057230). Now access the file using `Scanner scanner = new Scanner ( Search.class.getResourceAsStream ( "data.txt" ) );` Or simply place the file inside `bin` folder. — nIcE cOw, Jun 07 '15 at 16:49
@nIcEcOw I'm getting a java.lang.NullPointerException when I do that — OoOoOoOoOoO, Jun 07 '15 at 16:56
@OoOoOoOoOoO: If I follow the steps, as mentioned in my previous comment, then it is working fine, though I have to use `scanner = new Scanner ( ShowFile.class.getResourceAsStream ( "/files/data.txt" ) );`. Here is a [working project](https://www.dropbox.com/s/kc20dzivmt0svzl/TestingFile.rar?dl=0). This project is made in `Eclipse Mars`. I just created a Source Folder named `resources` inside it I manually created a folder `files` and copied `data.txt` file to this folder `files`. — nIcE cOw, Jun 07 '15 at 17:40

score 2 · Answer 1 · answered Jun 07 '15 at 16:38

2

The working path of your executed code can be determined with this code:

System.out.println(new File(".").getAbsolutePath());

Usually this is the target or the classes or the bin folder, depending on your IDE.

answered Jun 07 '15 at 16:38

B4dT0bi

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21

Once I find that out, how can I change that or put the text file there? – OoOoOoOoOoO Jun 07 '15 at 16:42
you simply browse your files system to the folder ... it is most of the time in your workspace. and place the `data.txt` there . What is the result of this System.out.println.. please ? – Jun 07 '15 at 17:13

score 2 · Answer 2 · 2015-06-07T16:46:17.613

2

You have to put the file data.txt in the root of your eclipse java project , outside your folder /src/.

enter image description here

edited Jun 07 '15 at 16:46

answered Jun 07 '15 at 16:39

is it like in the picture ? – Jun 07 '15 at 16:46
Yes it looks exactly like that: Search, src, JRE... , data.txt – OoOoOoOoOoO Jun 07 '15 at 16:50
try `new File("/data.txt")` in the `Scanner` ? – Jun 07 '15 at 16:54
is `data.txt` a *read-only* file ? check the properties of data.txt ? you are in which OS ? – Jun 07 '15 at 16:58
what ever OSryx suggested u, it should work. Check these two links 1>http://stackoverflow.com/questions/22978170/java-io-filenotfoundexception-in-eclipse 2>http://stackoverflow.com/questions/19871955/java-io-filenotfoundexception-the-system-cannot-find-the-file-specified – Bacteria Jun 07 '15 at 17:06

java FileNotFoundException wont locate a file in the same project

2 Answers2