Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package com.cms.view; import com.vaadin.navigator.View; import com.vaadin.navigator.ViewChangeListener; import com.vaadin.ui.CustomComponent; /** * * @author thieulq1 */ public class Help extends CustomComponent implements View { public Help() { } @Override public void enter(ViewChangeListener.ViewChangeEvent event) { // throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. } }