SWT Java Tutorial

Possible values for verticalAlignment include the following:
BEGINNING: Top-aligned
CENTER: Center-aligned (the default value)
END: Bottom-aligned
FILL: Filling all the available vertical space

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.List;
import org.eclipse.swt.widgets.Shell;
public class GridLayoutVerticalAlignment {
  public static void main(String[] args) {
    Display display = new Display();
    final Shell shell = new Shell(display);
    GridLayout gridLayout = new GridLayout();
    gridLayout.numColumns = 2;
    gridLayout.makeColumnsEqualWidth = true;
    
    shell.setLayout(gridLayout);
    Button button1 = new Button(shell, SWT.PUSH);
    button1.setText("button1"); // Default alignment
    List list = new List(shell, SWT.BORDER);
    list.add("item 1");
    list.add("item 2");
    list.add("item 3");
    list.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_CENTER));
    Button button2 = new Button(shell, SWT.PUSH);
    button2.setText("button #2");
    button2.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_END));
    Button button3 = new Button(shell, SWT.PUSH);
    button3.setText("3");
    button3.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_FILL));
    
    shell.setSize(450, 400);
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) {
        display.sleep();
      }
    }
    display.dispose();
  }
}