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public class TestSWT {
 
	public static void main (String [] args) {
		Display display = new Display ();
		Shell shell = new Shell (display);
 
		GridLayout gridLayout = new GridLayout();
		gridLayout.numColumns = 3;
		shell.setLayout(gridLayout);
 
		Button butt1 = new Button(shell, SWT.PUSH);
		Button butt2 = new Button(shell, SWT.PUSH);
		Button butt3 = new Button(shell, SWT.PUSH);
		Button butt4 = new Button(shell, SWT.PUSH);
 
		GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
		gridData.widthHint = 40;
		gridData.grabExcessHorizontalSpace = false;
		butt1.setLayoutData(gridData);
 
		gridData = new GridData(GridData.FILL_HORIZONTAL);
		gridData.horizontalSpan = 2;
		butt2.setLayoutData(gridData);
 
		gridData = new GridData(GridData.FILL_HORIZONTAL);
		gridData.verticalAlignment = gridData.FILL_VERTICAL;
		gridData.horizontalSpan = 2;
		butt3.setLayoutData(gridData);
 
		gridData = new GridData(GridData.FILL_BOTH);
		gridData.widthHint = 40;
		gridData.grabExcessHorizontalSpace = false;
		butt4.setLayoutData(gridData);
 
		shell.pack ();
		shell.open ();
		while (!shell.isDisposed ()) {
			if (!display.readAndDispatch ()) display.sleep ();
		}
		display.dispose ();
	}
} | 
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