ButtonBar
ButtonBar buttonBar = new ButtonBar();
//排序規則
buttonBar.setButtonOrder(ButtonBar.BUTTON_ORDER_NONE);
Button apply = new Button("APPLY");
Button okDone = new Button("DONE");
Button cancelClose = new Button("CANCEL");
ButtonBar.setButtonData(apply, ButtonData.APPLY);
ButtonBar.setButtonData(okDone, ButtonData.OK_DONE);
ButtonBar.setButtonData(cancelClose, ButtonData.CANCEL_CLOSE);
buttonBar.getButtons().addAll(apply, okDone, cancelClose);