Java code not reading CSVs after being compiled-CodePudding

So I have a finished java project. It can read CSVs when I press run class on VSCODE. The App class is the main class. However when I compile the project and type "Java App" on the terminal it can't find the location of the CSV. I'm not sure why. This is the error I get

Exception in thread "main" java.io.FileNotFoundException: AIR-QUALITY-PROJECT/lib/1year.csv (No such file or directory)
        at java.base/java.io.FileInputStream.open0(Native Method)
        at java.base/java.io.FileInputStream.open(FileInputStream.java:211)
        at java.base/java.io.FileInputStream.<init>(FileInputStream.java:153)
        at DataHandler.readDataFromCSV(DataHandler.java:18)
        at App.main(App.java:14)

The CSV is in lib and I'm running App from the src. Again this CSV runs fine when I run the class on VSCODE

I tried putting the 1year.csv on the root, in the src, everything!!! it doesn't work when I compile it

This how I am calling the path

private static final String PATH = "AIR-QUALITY-PROJECT/lib/1year.csv";

Again runs perfectly when I press run class on VSCODE

App.java is in SRC and 1year.csv is in the lib folder

CodePudding user response：

You are using a relative path. That means relative to where the application runs.

If you want to have a reliable application you should use an absolut path, and the best would probably be if you configure or pass the path when running the application.

CodePudding user response：

In such cases it is useful to log what the currentPath is while the program is running. You could do this e.g. like this

System.out.println("Current path is: "   new File("").getAbsolutePath());

All your relative paths must be relative to this path.

P.s. There are various methods to get the currentPath in java. This is just one of them.