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.ahmed.vaadinone.ui; import com.vaadin.ui.HorizontalSplitPanel; import com.vaadin.ui.Label; /** * * @author Java-dev1 */ public class MainWindow extends HorizontalSplitPanel { private NavigationTree nTree = null; private RightMainWindow rWindow = new RightMainWindow(); public MainWindow() { setSplitPosition(200, Unit.PIXELS); setFirstComponent(getnTree()); setSecondComponent(rWindow); setSizeFull(); } public NavigationTree getnTree() { if (nTree == null) { nTree = new NavigationTree(); } return nTree; } }