Java tutorial
/** * Copyright (c) 2015 Moritz Reiter * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package com.anothernode.ballkontrolle; import javax.servlet.annotation.WebServlet; import com.anothernode.ballkontrolle.backend.Data; import com.anothernode.ballkontrolle.backend.Drawing; import com.vaadin.annotations.Theme; import com.vaadin.annotations.VaadinServletConfiguration; import com.vaadin.server.VaadinRequest; import com.vaadin.server.VaadinServlet; import com.vaadin.ui.Button; import com.vaadin.ui.Label; import com.vaadin.ui.UI; import com.vaadin.ui.VerticalLayout; @SuppressWarnings("serial") @Theme("ballkontrolle") public class BallkontrolleUI extends UI { @WebServlet(value = "/*", asyncSupported = true) @VaadinServletConfiguration(productionMode = false, ui = BallkontrolleUI.class) public static class Servlet extends VaadinServlet { } @Override protected void init(VaadinRequest request) { final VerticalLayout layout = new VerticalLayout(); layout.setMargin(true); setContent(layout); Label team1Player1 = new Label(""); Label team1Player2 = new Label(""); Label team2Player1 = new Label(""); Label team2Player2 = new Label(""); final Button button = new Button("Draw Teams"); button.addClickListener(event -> { final Drawing drawing = new Drawing(Data.summonPlayers()); team1Player1.setValue(drawing.getTeam1().getPlayer1().toString()); team1Player2.setValue(drawing.getTeam1().getPlayer2().toString()); team2Player1.setValue(drawing.getTeam2().getPlayer1().toString()); team2Player2.setValue(drawing.getTeam2().getPlayer2().toString()); }); layout.addComponent(button); layout.addComponent(new Label("Team 1:")); layout.addComponent(team1Player1); layout.addComponent(team1Player2); layout.addComponent(new Label("Team 2:")); layout.addComponent(team2Player1); layout.addComponent(team2Player2); } }