gwt - 如何获取 GWT 小部件类型

Question

有什么方法可以获取 GWT 小部件的类型吗？

for(Widget w : widgetList)  
{  
 //if w is textbox type, read value and do something

}

Answer 1

for(Widget w : widgetList)
{
  if(w instanceof textbox)
        // read value and do something
}