Thread: Adding data to a text box on another class

Post what you've done and where you need help (doing so as an SSCCE will strengthen your chance of getting quicker and more meaningful response).

ok thanks.

So this is my main class where I have created what is now a ListBox and a button. When I click on the button I want to be able to load a set of results from a csv file and add them to the lisbox.

thanks

import org.eclipse.swt.widgets.Display;
 
public class guiwindow {
 
	protected Shell shell;
 
	/**
	 * Launch the application.
	 * @param args
	 */
	public static void main(String[] args) {
		try {
			guiwindow window = new guiwindow();
			window.open();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
 
	/**
	 * Open the window.
	 */
	public void open() {
		Display display = Display.getDefault();
		createContents();
		shell.open();
		shell.layout();
		while (!shell.isDisposed()) {
			if (!display.readAndDispatch()) {
				display.sleep();
			}
		}
	}
 
	/**
	 * Create contents of the window.
	 */
	protected void createContents() {
		shell = new Shell();
		shell.setSize(450, 300);
		shell.setText("SWT Application");
 
		List lstItems = new List(shell, SWT.BORDER);
		lstItems.setBounds(10, 10, 197, 242);
 
		Button btnLoadFile = new Button(shell, SWT.NONE);
		btnLoadFile.addMouseListener(new MouseAdapter() {
			@Override
			public void mouseUp(MouseEvent e) {
				[B][COLOR="red"]//run import from csv here[/COLOR][/B]
			}
		});
		btnLoadFile.setBounds(220, 10, 75, 25);
		btnLoadFile.setText("Load File");
 
	}
 
}
 
 
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.StringTokenizer;
 
public class CSVFileReader {
 
	ArrayList <String>storeValues = new ArrayList<String>();
	ArrayList <String>CleanList = new ArrayList<String>();
	private String fileName;
 
	public CSVFileReader(String FileName)	{		
		this.fileName=FileName;	} 
 
	public ArrayList<String> ReadFile()
	{
		try {
			//storeValues.clear();//just in case this is the second call of the ReadFile Method./
			BufferedReader br = new BufferedReader( new FileReader(fileName));
 
			StringTokenizer st = null;
			int lineNumber = 0, tokenNumber = 0;
 
			while( (fileName = br.readLine()) != null)
			{
				lineNumber++;
				//System.out.println(fileName);
				storeValues.add(fileName);
				//break comma separated line using ","
				st = new StringTokenizer(fileName, ",");
 
				while(st.hasMoreTokens())
				{	
 
					//System.out.println("Line # " + st.nextToken());
					CleanList.add(st.nextToken());
 
				}
 
				//reset token number
				tokenNumber = 0;
 
			} 
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return CleanList;
 
	}
 
 
	//mutators and accesors 
 
	public void displayArrayList()
	{
		for(int x=0;x<this.CleanList.size();x++)
		{
			System.out.println(CleanList.get(x));
		}
	}
 
}