| /******************************************************************************* |
| * Copyright (c) 2008 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.Map.Entry; |
| |
| /** |
| * Tests built in logical structures. |
| */ |
| public class LogicalStructures { |
| |
| public static void main(String[] args) { |
| Map map = new HashMap(); |
| map.put("one", new Integer(1)); |
| map.put("two", new Integer(2)); |
| List list = new ArrayList(); |
| list.add("three"); |
| list.add("four"); |
| Set set = map.entrySet(); |
| Entry entry = (Entry) set.iterator().next(); |
| entry.getKey(); |
| } |
| |
| } |