The FileReader cannot find my text file

问题

I have a simple text file and for some reason, it cannot be found. I don't see anything wrong with the code because I got it from a site, and I am starting to think that I didn't place the text file in the right place. Any suggestion please?

Code:

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.nio.file.Path;
import java.nio.file.Paths;

public class MainFavorites {
    public static void main(String[] args) throws IOException {
        /**
        * finds pathway to the file
        */
        //      File file = new File("icecreamTopping.txt");
        //      System.out.println(file.getCanonicalPath());

        BufferedReader reader = null;
        ArrayList <String> myFileLines = new ArrayList <String>();
        try {
            String sCurrentLine;
            reader = new BufferedReader(new FileReader("icecreamTopping.txt"));
            while ((sCurrentLine = reader.readLine()) != null) {
                //System.out.println(sCurrentLine);
                myFileLines.add(sCurrentLine);
            }
        } catch (IOException e) {
            e.printStackTrace();
            System.out.print(e.getMessage());
        } finally {
            try {
                if (reader != null)reader.close();
            } catch (IOException ex) {
                System.out.println(ex.getMessage());
                ex.printStackTrace();
            }
        }
        int numElements = myFileLines.size();
        System.out.println ("there are n lines in the file:" + numElements);

        for (int counter = numElements-1; counter >= 0; counter--) {
            String mylineout = myFileLines.get(counter);
            System.out.println (mylineout);
        }
    }
}

File content:

1- Blueberry 
2- Banana Buzz
3- Cookie Batter

My stack trace is this:

java.io.FileNotFoundException: C:\Users\homar_000\workspace\RankFavorites\icecreamTopping.txt (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method) at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileReader.<init>(Unknown Source)
at MainFavorites.main(MainFavorites.java:28)

回答1:

Replace below line

reader = new BufferedReader(new FileReader("icecreamTopping.txt"));

with

reader = new BufferedReader(new FileReader("resources/icecreamTopping.txt"));

and put the file under resources folder that resides parallel to src folder.

---

Sample code:

Reading a file abc.txt from resources folder

reader = new BufferedReader(new FileReader("resources/abc.txt"));

Here is the project structure

---

Try below code to find out where it is pointing to file icecreamTopping.txt.

 File f=new File("icecreamTopping.txt");
 System.out.println(f.getAbsolutePath());

After getting the absolute path, just place the file there.

---

--EDIT--

As per your last comments, put icecreamTopping.txt file in the project RankFavorites directly as shown in below snapshot and It will definitely solve your problem.

回答2:

Found out what was the problem. It was unnecessary for me to put the file extension so I removed the .txt because when I kept it, it read it as "icecreamTopping.txt.txt"

回答3:

Try to use File class to detect your file in storage:

File sdcard = Environment.getExternalStorageDirectory();

//Get the text file
File file = new File(sdcard,"file.txt");

BufferedReader br = new BufferedReader(new FileReader(file));

来源：https://stackoverflow.com/questions/22585621/the-filereader-cannot-find-my-text-file