public class Main {
 
    public void onEnable ( ) {

        FileAPI api = new FileAPI ( ) ; // create a new FileAPI calles api
        api. createFile ( "C:/Development/workspace/Test-Project", "Testfile.txt" ) ; // define and create your filename and directory.
          // api.createFile(this.getDataFolder().getAbsolutePath(), "TestFile.txt"); # if you want to use it on a Server

        // now you can do something like this:
        api. writeInNextFreeLine ( "Line1" ) ; // Write "Line1" in the next free line in the File
        api. writeInNextFreeLine ( "Line2" ) ; // Same but in line 2
        api. writeInNextFreeLine ( "Line3" ) ; // also the same but in Line 3

          System. out. println ( "Line 2: " + readline ( 2 ) ) ; // The output will be "Line2"

    }
}