Unable to find the file kept inside project

Question

I have an excel file which I have kept in a subfolder of my main package. I want to read that file. When I read it using InputStream , it file is easily detected but when I read using FileInputStram or File file = new File(filepath) I get the error that the file is not found.

Can anyone help me in reading the file using FileInputStram or File file = new File(filepath) ?

The code what I wrote to read the file is

File file = new File("upgradeworkbench/Resources/workbookOut.xlsm");

and

FileInputStream inp = new FileInputStream("upgradeworkbench/Resources/workbookOut.xlsm");

I tried with / in the beginning of the path but still it didn't work.

Answer 1

When working with File class you need to provide either absolute or relative path. Absolute path is the full file path eg C:\\workbookOut.xlsm

In relative paths, there is a concept of a working directory and it's represented by a . (dot) and everything else is relative to it.

Try either giving the full path or the relative path.

File file = new File("./upgradeworkbench/Resources/workbookOut.xlsm");

Answer 2

If your file in classpath then try below code

package mypack;

import java.io.*;

public class TestPath
{

    public static void main(String[] args) throws Exception
    {
        InputStream stream = Test.class.getResourceAsStream("/workbookOut.xlsm");
        System.out.println(stream != null);
        stream = Test.class.getClassLoader()
            .getResourceAsStream("workbookOut.xlsm");
        System.out.println(stream != null);
    }
}

Answer 3

If your file in same package then use the below line it will work

URL url = getClass().getResource("workbookOut.xlsm");

File file =new File(url.getPath());