How to build pop up of TableViewer in SWT?

I am new in Java and in SWT.

I created TableViewer to show data of tables.

class myTable : TableViewer

I want when I press on button to open dialog of myTable ( like pop up ) and to choose any item from the TableViewer.

The dialog should have two buttons "OK" and cancel.

Do you know how to do it in java? I mean to open dialog with TableViewer

Does there is standard widget for this?

which component do I need to use?

Do you have any example?

The simplest dialog would be one using org.eclipse.jface.dialog.Dialog - something like this:

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;

public class TestDialog extends Dialog
{
  public TestDialog(final Shell parentShell)
  {
    super(parentShell);
  }


  @Override
  protected Control createDialogArea(final Composite parent)
  {
    final Composite body = (Composite)super.createDialogArea(parent);

    final TableViewer viewer = new TableViewer(body, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);

    viewer.getTable().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

    // TODO: Set TableViewer content and label providers
    // TODO: Set TableViewer input

    return body;
  }
}

In your code you do:

TestDialog dialog = new TestDialog(shell);

dialog.open();   // Displays the dialog in a popup window