Thread: Adding a frame/textarea to an application

So, I figured out how to get my folder monitoring code working, but now I would like to make it output into a window, rather than the console. I have both codes working separately but don't know how to merge them together into a single class. I realize that this is beginner stuff, but that's what I am

This is the working folder monitor code:

import net.contentobjects.jnotify.JNotify; 
import net.contentobjects.jnotify.JNotifyListener;
 
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionListener;
import java.io.*;
import java.util.*;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class FileWatcher { 
	public void sample() throws Exception {
	String path = "D:\\download"; 
	System.out.println(path); 
	int mask = JNotify.FILE_CREATED | JNotify.FILE_DELETED | JNotify.FILE_MODIFIED | JNotify.FILE_RENAMED; 
	boolean watchSubtree = true; 
	int watchID = JNotify.addWatch(path, mask, watchSubtree, new Listener()); 
	Thread.sleep(1000000); 
	boolean res = JNotify.removeWatch(watchID); 
	if (!res) { 
		System.out.println("Invalid"); 
		} 
	}
 
	public void TouchFile(String fName) {
		if ((fName.indexOf("Thumbs") == -1) || (fName.indexOf(".rar") == -1)){
			String TodayDate = "";
			String fModifyDate = "";
	    	String line;
	    	String line2 = "error";	    	
			Calendar calendar = Calendar.getInstance();
	        SimpleDateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy");
			File filename = new File(fName);        
		 try {
	        } catch (Exception e) {
	            e.printStackTrace();
	        }
	        TodayDate = dateFormat.format(calendar.getTime());	        
	        fModifyDate = dateFormat.format(filename.lastModified());
	    try {
	    	Thread.currentThread().sleep(1000);
	    	while ((line2.indexOf("error") != -1) && (!fModifyDate.equals(TodayDate))){
		    System.out.println(fName + " modified on: " + fModifyDate);	    		
	    	line2 = " ";
	    	Process p = Runtime.getRuntime().exec("touch.exe " + "\"" + fName + "\"");
	    	BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));	    	
	          while ((line = input.readLine()) != null) {
	            line2 = line2 + "\n" + line;
	          }
	          input.close();
	          System.out.println(line2);
	          p.waitFor();
	    		}
	    }
	    catch (Exception err) {
	    	err.printStackTrace();
	    	}
		}
	  }
 
class Listener implements JNotifyListener {
    public void fileRenamed(int wd, String rootPath, String oldName,
            String newName) {
        print("renamed " + rootPath + " : " + oldName + " -> " + newName);
    }
 
    public void fileModified(int wd, String rootPath, String name) {
        //print("modified " + rootPath + " : " + name);
        TouchFile(rootPath + "\\" + name);        
    }
 
    public void fileDeleted(int wd, String rootPath, String name) {
        print("deleted " + rootPath + " : " + name);
    }
 
    public void fileCreated(int wd, String rootPath, String name) {
        print("created " + rootPath + " : " + name);
        TouchFile(rootPath + "\\" + name);
    }
 
    void print(String msg) {
        System.err.println(msg);
    }
}
public static void main(String[] args) {
	    try {
        new FileWatcher().sample();
    } catch (Exception e) {
        e.printStackTrace();
    }
}
 
}

This is is the working text area/window making code:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class Test extends JPanel implements ActionListener {
    protected JTextField textField;
    protected JTextArea textArea;
    private final static String newline = "\n";
 
    public Test() {
        super(new GridBagLayout());
 
        textField = new JTextField(20);
        textField.addActionListener(this);
 
        textArea = new JTextArea(5, 20);
        textArea.setEditable(false);
        JScrollPane scrollPane = new JScrollPane(textArea);
 
        //Add Components to this panel.
        GridBagConstraints c = new GridBagConstraints();
        c.gridwidth = GridBagConstraints.REMAINDER;
 
        c.fill = GridBagConstraints.HORIZONTAL;
        add(textField, c);
 
        c.fill = GridBagConstraints.BOTH;
        c.weightx = 1.0;
        c.weighty = 1.0;
        add(scrollPane, c);
    }
 
    public void actionPerformed(ActionEvent evt) {
        String text = textField.getText();
        textArea.append(text + newline);
        textField.selectAll();
 
        //Make sure the new text is visible, even if there
        //was a selection in the text area.
        textArea.setCaretPosition(textArea.getDocument().getLength());
    }
 
    /**
     * Create the GUI and show it.  For thread safety,
     * this method should be invoked from the
     * event dispatch thread.
     */
    private static void createAndShowGUI() {
        //Create and set up the window.
        JFrame frame = new JFrame("Test");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
        //Add contents to the window.
        frame.add(new Test());
 
        //Display the window.
        frame.pack();
        frame.setVisible(true);
    }
 
    public static void main(String[] args) {
        //Schedule a job for the event dispatch thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
}

Hi copeg, thanks for your reply! I couldn't quite figure out how to use the code that you gave me but it did point me in a good direction and I got it the window logging to work in the end, after a lot of googling and trying things out.

The code works now as I want it but I'd really appreciate it if someone could take a look and tell me if there are any glaring coding mistakes/bad practices in there. I'm pretty sure there are, as I suspect the way I use variables isn't the best, but there are probably others too.

import net.contentobjects.jnotify.JNotify; 
import net.contentobjects.jnotify.JNotifyListener;
import java.io.*;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.awt.Dimension;
import java.awt.Toolkit;
import javax.swing.JTextArea;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.SwingWorker;
import javax.swing.JScrollPane;
import java.util.logging.*;
import java.awt.BorderLayout;
 
public class FileWatcher extends JPanel {
	private static String line2 = "error";
	private JFrame frame = new JFrame();
        private JTextArea textArea = new JTextArea();
        private JScrollPane pane = new JScrollPane(textArea);	
	private static FileWatcher watcher = new FileWatcher();
 
	private void sample(String path) throws Exception {
	showInfo("Monitoring: " + path);
	int mask = JNotify.FILE_CREATED | JNotify.FILE_DELETED | JNotify.FILE_MODIFIED | JNotify.FILE_RENAMED; 
	boolean watchSubtree = true; 
	int watchID = JNotify.addWatch(path, mask, watchSubtree, new Listener()); 
	Thread.sleep(1000000); 
	boolean res = JNotify.removeWatch(watchID); 
	if (!res) { 
		//System.out.println("Invalid"); 
		showInfo("Invalid"); 
		} 
	}
 
	public void TouchFile(String fName) {
		if ((fName.indexOf("Thumbs") == -1) && (fName.indexOf(".rar") == -1) && (fName.indexOf(".part") == -1)){
			String TodayDate = "";
			String fModifyDate = "";
	    	String line;
			Calendar calendar = Calendar.getInstance();
	        SimpleDateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy");
			File filename = new File(fName);        
		 try {
	        } catch (Exception e) {
	            e.printStackTrace();
	        }
	        TodayDate = dateFormat.format(calendar.getTime());	        
	        fModifyDate = dateFormat.format(filename.lastModified());
	        try {
	    	Thread.currentThread().sleep(1000);
	    	while ((line2.indexOf("error") != -1) && (!fModifyDate.equals(TodayDate))){
		//System.out.println(fName + " modified on: " + fModifyDate);	  
		showInfo(fName + " modified on: " + fModifyDate);
	    	line2 = " ";
	    	Process p = Runtime.getRuntime().exec("touch.exe " + "\"" + fName + "\"");	    	
	    	BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));	    	
	          while ((line = input.readLine()) != null) {
		      line2 = line2 + "\n" + line;
	          }
	          input.close();
	          showInfo(line2);
	          p.waitFor();
	    		}
	    }
	    catch (Exception err) {
	    	err.printStackTrace();
	    	}
		}
	  }
 
public void showInfo(String data) {
	watcher.textArea.append(data+"\n");
	watcher.frame.getContentPane().validate();
	watcher.textArea.setCaretPosition(watcher.textArea.getText().length() - 1);
}
 
class Listener implements JNotifyListener {
    public void fileRenamed(int wd, String rootPath, String oldName,String newName) {
        //print("renamed " + rootPath + " : " + oldName + " -> " + newName);
        showInfo("renamed " + rootPath + "\\" + oldName + " -> " + newName);
    }
 
    public void fileModified(int wd, String rootPath, String name) {
        //print("modified " + rootPath + " : " + name);
        TouchFile(rootPath + "\\" + name);    
        showInfo("modified " + rootPath + "\\" + name);
    }
 
    public void fileDeleted(int wd, String rootPath, String name) {
        //print("deleted " + rootPath + " : " + name);
        showInfo("deleted " + rootPath + "\\" + name);
    }
 
    public void fileCreated(int wd, String rootPath, String name) {
        //print("created " + rootPath + " : " + name);
        TouchFile(rootPath + "\\" + name);
        showInfo(rootPath + "\\" + name);
    }
 
    void print(String msg) {
        //System.err.println(msg);
    	showInfo(msg);
    }
}
public static void main(String[] args) {
   String path = "H:\\download";
   Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
   watcher.frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    watcher.frame.setSize(500,200);
    watcher.frame.setVisible(true);	
    watcher.frame.getContentPane().add(watcher.pane);
    watcher.frame.setVisible(true); 
    watcher.frame.setLocation(screenSize.width-500,screenSize.height-250);
    try {
    	if (args.length > 0){
    		new FileWatcher().sample(args[0]);
    	}
    	else {
    		new FileWatcher().sample(path);
 
    	}
 
    } catch (Exception e) {
        e.printStackTrace();
    }
}
}