Tab or Table not visible

[madhuvanthi2312]

Hi!
I am new to Java and swt. I've just started with eclipse.
I am trying to display a Table in a Tab accessible through a menu item. The code is as follows:

This class handles the Menu action:

package swt_trial_my_code;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;

public class TabTable implements IWorkbenchWindowActionDelegate 
{
	IWorkbenchWindow activeWindow;
	MyTabTableExample example;
	public void dispose() 
	{
		// TODO Auto-generated method stub

	}

	public void init(IWorkbenchWindow window) 
	{
		activeWindow = window;
		Shell shell = activeWindow.getShell();
		Shell tabShell = new Shell(shell);
		example = new MyTabTableExample(tabShell);
		tabShell.open();
	}

	public void run(IAction action) 
	{
		// TODO Auto-generated method stub

	}

	public void selectionChanged(IAction action, ISelection selection) 
	{
		// TODO Auto-generated method stub

	}

}

This class creates a tab folder with only one tab item and should display a table in it:

package swt_trial_my_code;

import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.TabFolder;
import org.eclipse.swt.widgets.TabItem;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;

public class MyTabTableExample 
{
	TabFolder tab;
	Composite tableComp;
	Table table;
	TabItem page;
	
	public MyTabTableExample(Shell shell)
	{
		createTab(shell);
		createTable();
		createTabItem();
	}
	
	private void createTab(Shell shell)
	{
		tab = new TabFolder(shell,SWT.NONE);
	}
	
	private void createTable()
	{
		tableComp = new Composite(tab,SWT.NONE);
		table = new Table(tableComp,SWT.BORDER);
		table.setLinesVisible(true);
		table.setHeaderVisible(true);
		
		//Columns
		
		TableColumn component = new TableColumn(table, SWT.NONE);
		component.setText("Component");
		component.setWidth(50);
		component.pack();
		
		TableColumn level = new TableColumn(table,SWT.NONE);
		level.setText("Level");
		level.setWidth(50);
		level.pack();
		
		//Items
		
		TableItem row0 = new TableItem(table,SWT.NONE);
		row0.setText(new String[] {"abc","Level 1"});	
	}
	
	private void createTabItem()
	{
		page = new TabItem(tab,SWT.NONE);
		page.setText("Table");
		page.setControl(tableComp);
	}
}

However, all I get when I go to 'Hello SWT' is a blank pop up as seen in the image. I can't figure out where i've gone wrong.
Please help me out!

[makpandian]

Dont post a thread once again like this?
It will not be understood by others.
Just post By which problem,you are suffering.