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Using RowData Objects

The corresponding layout data for the RowLayout class is the RowData class. RowData can specify the initial width and height of a control. Layout data objects should not be reused in SWT/JFace import org.eclipse.swt.SWT; import org.eclipse.swt.layout.RowData; import org.eclipse.swt.layout.RowLayout; 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 RowLayoutRowData {   public static void main(String[] args) {     Display display = new Display();     final Shell shell = new Shell(display);     RowLayout rowLayout = new RowLayout();     shell.setLayout(rowLayout);     Button button1 = new Button(shell, SWT.PUSH);     button1.setText("button1");     List list = new List(shell, SWT.BORDER);     list.add("item 1");     list.add("item 2");     list.add("item 3");     list.setLayoutData(new RowData(100, 35));          Button button2 = new Button(shell, SWT.PUSH);     button2.setText("button #2");     shell.setSize(450, 200);     shell.open();     while (!shell.isDisposed()) {       if (!display.readAndDispatch()) {         display.sleep();       }     }     display.dispose();   } }