User entered file paths in Java

Question

I'm writing a text analyzer program that counts words and sentences etc. The user is asked to enter a file to analyze.

Ex.

"Enter a file to analyze : " "Enter : stuff.txt"

I have the file saved in my project, but only works when I put the full file path, below is how it's handled.

public void loadFromFile(String filePath) {
      try {
             theText = new String(Files.readAllBytes(Paths.get(filePath)));
      } catch (Exception e) {
           System.out.println("could not load file " + filePath);
               e.printStackTrace();
      }          
 } 

I want to simply write stuff.txt instead of the full file path