写anchor 控件和checkBox控件的时候这样可以么

public class Test implements EntryPoint { public void onModuleLoad() { Anchor a = new Anchor("google" + "<image src= 'http:/code.google.com/intl/zh-CN/webtoolkit/images/gwt-logo.png'/>",true,"http:/code.google.com/intl/zh-CN/webtoolkit/"); Button b = new Button("Google"+"<image src= 'http:/code.google.com/intl/zh-CN/webtoolkit/images/gwt-logo.png'/>"); Button welcomeButton = new Button("欢迎"); welcomeButton.addClickHandler( new ClickHandler() { @Override public void onClick(ClickEvent event) { Window.alert("ASS");
}
//To change body of implemented methods use File | Settings | File Templates.
}); RootPanel.get().add(welcomeButton); /** Button button =Button.wrap(com.google.gwt.user.client.DOM.getElementById("button")); button.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { @Override public void onClick( ClickEvent event){ Window.alert("clicked");*/ }}class verticalPanne extends CheckBox{}abstract class multiButton{}class FoodButton extends multiButton{
}