Java tutorial
/* Copyright 2008, Queensland University of Technology * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ package com.qut.gwtuilib.client.display; import com.google.gwt.user.client.ui.Label; import com.qut.gwtuilib.client.CSSConstants; public class RequiredField extends Label { public RequiredField() { ToolTip toolTip = new ToolTip("This is mandatory content"); this.addMouseListener(toolTip); this.addStyleName(CSSConstants.requiredField); } }