Loading a file (using an already written class)

Question

Hi,
I was just wondering how i can use this class and call it from my GUI class.
I have tried creating a loadfile object in the gui class and calling the load file method.
I think i may have to create a loadfile window which i did but when i put it in the loadfile method it wanted i return type????
I really have no idea.
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import java.awt.*;
import java.io.*;
public class LoadFile
     File fi;
     String filename = null;
     String directory;
     FileReader in = null;
     BufferedReader bReader = null;
     Frame frame;
     public LoadFile(Frame frame)
          // Use a FileDialog object to allow user to choose file and get its name and directory
          this.frame = frame;
          FileDialog fd = new FileDialog(frame, "Open File", FileDialog.LOAD);
          directory = System.getProperty("user.dir");
          fd.setDirectory(directory);
          fd.show();
          directory = fd.getDirectory();
          filename = fd.getFile();
          // Send File details to method which will make FileReader and BufferedReader
          makeBuffReader(directory, filename);
          // Dispose of FileDialog object when finished
          fd.dispose();
     // makes FileReader and then Buffered Reader from file
     private void makeBuffReader(String directory, String filename)
          if (filename == null || (filename.length() == 0))
          {return;}
          try
               fi = new File(directory, filename);
               in = new FileReader(fi);
               bReader = new BufferedReader(in);
          catch (IOException e)
               System.out.println("Error loading file!");
     // Allows GUI class access to Buffered Reader created from file
     public BufferedReader getBuffReader()
          return bReader;
================================================================================

Answer 1

The LoadFile method is a constructor. It gets called automatically when you create a LoadFile object.
What you need to do isLoadFile lf = new LoadFile(myFrame);
BufferredReader br = lf.getBuffReader();The LoadFile class allows you to select a file and then creates a BufferredReader object which can be used to read from the file. You get the BufferreedReader object by calling the getBuffReader() method.